Jump to Recipe Print RecipeThere’s a sweet aroma wafting through my kitchen, reminding me of childhood afternoons spent with a glass of milk and warm cookies. Today, I’m thrilled to share my recipe for Old-Fashioned Peanut Butter Bars with Chocolate Glaze, a delightful treat that effortlessly bridges the gap between nostalgic comfort food and modern indulgence. These Peanut Butter Bars are not only a breeze to whip up, but they also satisfy that sweet tooth while staying wonderfully chewy and rich. Perfect for sharing at gatherings or keeping handy as a homemade snack, plus they freeze beautifully for those spontaneous cravings! So, are you ready to make your own batch of these delicious bars? Let’s dive into the recipe! Why Are These Peanut Butter Bars Irresistible? Nostalgic Flavors: The familiar taste of creamy peanut butter intertwined with a rich chocolate glaze will take you back to your childhood days. Effortlessly Easy: This recipe is simple enough for beginners but delicious enough to impress seasoned bakers! Perfect for Any Occasion: Whether it’s a potluck, a family gathering, or just a casual snack at home, these Peanut Butter Bars are sure to be a hit. Crowd-Pleasing Treat: With their chewy texture and decadent glaze, it’s tough to eat just one—everyone will be coming back for more! Freezer-Friendly: Prepare ahead, freeze, and enjoy these delicious bars anytime cravings hit. They are also a fantastic companion to a glass of milk or even with a slice of your favorite homemade Peanut Butter Banana Bread! Peanut Butter Bars Ingredients • For the Batter Butter – Provides richness and moisture; substitute with margarine if necessary. Granulated Sugar – Adds sweetness and aids in browning; while there’s no direct substitute, coconut sugar can offer a unique flavor. Light Brown Sugar – Contributes moisture and a caramel-like taste; using dark brown sugar can enhance the depth of flavor. Eggs – Binds the ingredients together and provides structure; for a vegan version, consider using a flaxseed or chia egg. Vanilla Extract – Enhances the overall flavor profile; homemade vanilla or imitation may also work. Creamy Peanut Butter – This is the heart of the recipe, giving it a rich flavor; can be substituted with almond or cashew butter. Baking Soda – A crucial leavening agent for lift; no direct substitute, but baking powder can be adjusted in ratios. Salt – Balances out the sweetness, enhancing flavors; sea or kosher salt can be used as alternatives. All-Purpose Flour – Provides structure to the bars; for gluten-free options, try a suitable flour blend. Old-Fashioned Rolled Oats – Adds delightful texture and chewiness; quick oats can work too but may alter the texture. This Peanut Butter Bars recipe is straightforward and open to delicious modifications, so feel free to get creative! Step‑by‑Step Instructions for Old-Fashioned Peanut Butter Bars Step 1: Preheat the Oven Begin by preheating your oven to 350°F (180°C). While it heats up, grease a 9×13-inch baking pan with butter or cooking spray to ensure your Peanut Butter Bars won’t stick. This step is crucial for achieving that perfect chewy texture and makes the cleanup much easier! Step 2: Cream the Butter and Sugars In a large mixing bowl, combine softened butter with granulated and light brown sugars. Using a hand mixer or stand mixer, beat the mixture on medium speed until it becomes light and fluffy, about 3-4 minutes. This creaming process incorporates air into the mixture, setting the foundation for your delightful Peanut Butter Bars. Step 3: Mix in the Wet Ingredients Next, add in the eggs, vanilla extract, and creamy peanut butter to the sugar mixture. Blend everything together on low speed until the ingredients are well combined and smooth, about 1-2 minutes. The key here is to ensure each ingredient is nicely incorporated without over-mixing, maintaining that lovely texture. Step 4: Combine the Dry Ingredients In a separate bowl, whisk together the baking soda, salt, all-purpose flour, and old-fashioned rolled oats. Gradually add this dry mixture to the wet ingredients, mixing on low speed just until combined. Be careful not to overmix; a few flour streaks are fine, as this helps keep the Peanut Butter Bars chewy. Step 5: Spread and Bake Pour the batter into the greased baking pan, spreading it out evenly with a spatula. Bake the Peanut Butter Bars in the preheated oven for 17-21 minutes, or until they’re set and the edges begin to lightly brown. A toothpick inserted should come out clean or with a few moist crumbs, indicating they aren’t overbaked. Step 6: Cool and Frost Once baked, remove the pan from the oven and let it cool completely in the pan on a wire rack. This step is essential as it allows the bars to firm up. After cooling, spread a layer of creamy peanut butter over the bars, followed by a rich melted chocolate glaze, creating a beautiful and decadent finish. Step 7: Cut and Serve Allow the chocolate glaze to set a bit before slicing your Peanut Butter Bars into squares or rectangles. These bars are now ready to be served! Pair them with a glass of milk or coffee for a comforting treat that everyone will love. Peanut Butter Bars Variations & Substitutions Feel free to tailor these Peanut Butter Bars to suit your taste buds with some delightful swaps and twists! Chunky Peanut Butter: Swap creamy for chunky to add a delicious crunch and variation in texture. Nutty Add-ins: Consider folding in chocolate chips or chopped nuts into the batter for an extra pop of flavor and texture. They’ll be a delightful surprise with each bite! Gluten-Free Flour: Replace all-purpose flour with a gluten-free flour blend to cater to gluten-sensitive eaters without sacrificing taste or texture. Sweetener Switch: Use honey or maple syrup instead of granulated sugar for a natural sweetness that pairs perfectly with peanut butter. Just remember to adjust the liquid ingredients accordingly! Chocolate Variation: Drizzle dark or white chocolate over the top instead of milk chocolate to elevate the flavor profile, transforming the bars into a gourmet treat. Oat Alternatives: Substitute old-fashioned rolled oats with quick oats if you prefer a smoother texture. This minor change can yield a slightly different, yet delicious bar! Extra Flavor Twist: Spice up the bars with a pinch of cinnamon or a splash of espresso powder to enhance the richness and elevate the overall taste experience. Caramel Drizzle: Top the cooled bars with a homemade caramel drizzle for a sweet surprise that complements the peanut butter beautifully. Don’t forget to serve these alongside a warm mug of coffee or a slice of Peanut Butter Banana Baked Oatmeal Cups for an indulgent treat! Expert Tips for Perfect Peanut Butter Bars Mind the Baking Time: Keep a close eye on the oven; underbaking just slightly will give you that chewy texture everyone loves in these Peanut Butter Bars. Use Room Temperature Ingredients: Allow your butter and eggs to reach room temperature for smoother mixing and better incorporation into the batter. Don’t Skip the Cooling: Letting the bars cool completely before frosting is crucial; this prevents the glaze from sliding off and ensures a beautiful finish. Try Different Toppings: For a fun twist, experiment with drizzling caramel or crushed nuts over the chocolate glaze for added flavor and texture. Careful with Mixing: Avoid overmixing during the dry ingredient step; a few lumps are fine, as this helps maintain the dense, chewy texture of your Peanut Butter Bars. How to Store and Freeze Peanut Butter Bars Room Temperature: Store your Peanut Butter Bars in an airtight container at room temperature for up to 1 week to maintain their softness. Fridge: If you prefer a firmer texture, refrigerate the bars in a sealed container for up to 2 weeks. Allow them to come to room temperature before serving. Freezer: For long-term storage, wrap the bars tightly in plastic wrap and then in aluminum foil or place in a freezer-safe container. They can be frozen for up to 3 months. Thawing: To enjoy, simply remove from the freezer and thaw in the fridge overnight or at room temperature for a couple of hours before serving. What to Serve with Old-Fashioned Peanut Butter Bars? Looking to elevate your Peanut Butter Bars experience? These delightful treats anchor any dessert table and pair perfectly with an array of delightful accompaniments. Glass of Milk: The classic pairing! The creamy milk perfectly balances the rich flavors of the bars, providing a nostalgic comfort. Coffee: A warm cup of coffee enhances the peanut butter and chocolate combination, making each bite even more satisfying as you savor those sweet notes. Vanilla Ice Cream: Serve a scoop on top of your warm bars; the melting ice cream adds a creamy contrast to the chewy texture. Fruit Salad: The freshness of a vibrant fruit salad brightens the rich peanut butter flavors, adding a refreshing, light contrast to your dessert. Chocolate Drizzle: Elevate your bars further by drizzling with melted chocolate; this extra layer of richness enhances the indulgent experience! Whipped Cream: Delicate and airy, a dollop of whipped cream on the side adds a light texture to balance out the density of the bars. Nuts: A sprinkle of chopped nuts like peanuts or almonds provides a crunch that contrasts beautifully with the soft, chewy texture of the bars. Decaf Tea: For a lighter option, a cup of herbal or decaf tea can be soothing and delightful alongside the sweetness of the Peanut Butter Bars. Dark Chocolate Sauce: For those who love extra chocolate, a rich dark sauce drizzled over the bars will satisfy any chocoholic craving with its bold flavor! Caramel Sauce: Drizzle warm caramel on top or serve it as a dip; the sweet, buttery flavor will be a delectable addition to each bite. Make Ahead Options These Peanut Butter Bars are perfect for meal prep enthusiasts! You can prepare the batter up to 24 hours in advance by mixing the wet and dry ingredients separately. Simply refrigerate the dry mixture and keep the wet mixture covered. When you’re ready to bake, combine them and pour into the pan. Additionally, once baked and cooled, the bars can be wrapped tightly and frozen for up to 3 months; just thaw in the fridge overnight for best results. To finish, add the peanut butter layer and chocolate glaze before serving to ensure they remain just as delicious! Enjoy the convenience of having a delightful treat ready to go any time you need a sweet fix! Peanut Butter Bars Recipe FAQs How do I select the best peanut butter for the bars? Absolutely! For these Peanut Butter Bars, I recommend using creamy peanut butter for a smooth texture. Look for brands that have minimal ingredients—preferably just peanuts and salt—to avoid additives that can affect the flavor. If you enjoy a little crunch, feel free to substitute with chunky peanut butter for added texture! What’s the best way to store Peanut Butter Bars? After your bars have cooled completely, you can store them in an airtight container at room temperature for up to 1 week. This keeps them delightfully soft. For a firmer texture, refrigerate the bars in a sealed container for up to 2 weeks. Just be sure to let them come to room temperature before indulging! Can I freeze Peanut Butter Bars? Yes, indeed! These bars freeze beautifully. To freeze, wrap them tightly in plastic wrap followed by aluminum foil or place them in a freezer-safe container. They can last for up to 3 months in the freezer. When you’re ready to enjoy, simply thaw them in the fridge overnight or leave them at room temperature for a couple of hours before serving. What should I do if my bars come out dry or crumbled? Very! If your Peanut Butter Bars turn out dry, it might be because they were overbaked. Keep an eye on them towards the end of the baking time; they should be slightly underbaked in the center for that chewy texture. If they do come out too crumbly, try adding a bit of milk or an extra layer of peanut butter on top next time to enhance the moisture! Are Peanut Butter Bars suitable for people with allergies? Yes, but caution is key! These bars contain common allergens like peanuts, dairy, and eggs. For those with peanut allergies, you could try using almond or sunflower seed butter instead. Additionally, for a vegan alternative, replace the eggs with a flaxseed egg (1 tablespoon flaxseed meal + 3 tablespoons water, mixed and let sit for a few minutes until gel-like). Just ensure all your ingredients are allergen-free if needed. Can I make substitutions for the sugars? Of course! While granulated sugar and light brown sugar are standard for this recipe, you can use coconut sugar for a unique flavor. Just keep in mind that different sugars can affect the moisture level slightly. If you opt for coconut sugar, using a 1:1 ratio is typically safe for substituting in this Peanut Butter Bars recipe. Chewy Peanut Butter Bars That Keep You Coming Back for More Indulge in Chewy Peanut Butter Bars that are rich and nostalgic, bringing you back to childhood with every bite. Print Recipe Pin Recipe Prep Time 15 minutes minsCook Time 21 minutes minsCooling Time 30 minutes minsTotal Time 1 hour hr 6 minutes mins Servings: 12 barsCourse: DessertCuisine: AmericanCalories: 200 Ingredients Equipment Method Nutrition Notes Ingredients 1x2x3x? For the Batter1 cup Butter Provides richness and moisture; substitute with margarine if necessary.1 cup Granulated Sugar Adds sweetness and aids in browning; while there’s no direct substitute, coconut sugar can offer a unique flavor.1/2 cup Light Brown Sugar Contributes moisture and a caramel-like taste; using dark brown sugar can enhance the depth of flavor.2 large Eggs Binds the ingredients together and provides structure; for a vegan version, consider using a flaxseed or chia egg.2 teaspoons Vanilla Extract Enhances the overall flavor profile; homemade vanilla or imitation may also work.1 cup Creamy Peanut Butter This is the heart of the recipe, giving it a rich flavor; can be substituted with almond or cashew butter.1 teaspoon Baking Soda A crucial leavening agent for lift; no direct substitute, but baking powder can be adjusted in ratios.1/2 teaspoon Salt Balances out the sweetness, enhancing flavors; sea or kosher salt can be used as alternatives.1 cup All-Purpose Flour Provides structure to the bars; for gluten-free options, try a suitable flour blend.2 cups Old-Fashioned Rolled Oats Adds delightful texture and chewiness; quick oats can work too but may alter the texture. Equipment mixing bowlhand mixer9x13-inch baking panspatulaWire rack Method Step-by-Step Instructions for Old-Fashioned Peanut Butter BarsPreheat your oven to 350°F (180°C) and grease a 9x13-inch baking pan with butter or cooking spray.In a large mixing bowl, combine softened butter with granulated and light brown sugars and beat on medium speed until light and fluffy, about 3-4 minutes.Add in the eggs, vanilla extract, and creamy peanut butter to the sugar mixture and blend on low speed until smooth, about 1-2 minutes.Whisk together the baking soda, salt, all-purpose flour, and old-fashioned rolled oats in a separate bowl, then gradually mix with the wet ingredients until combined.Pour the batter into the greased baking pan, spread evenly, and bake for 17-21 minutes until set and edges are lightly browned.Remove from the oven and let cool completely in the pan on a wire rack; then spread creamy peanut butter over the bars followed by a rich melted chocolate glaze.Once the glaze has set, cut the bars into squares or rectangles and serve. Nutrition Serving: 1barCalories: 200kcalCarbohydrates: 24gProtein: 5gFat: 10gSaturated Fat: 3gPolyunsaturated Fat: 2gMonounsaturated Fat: 4gCholesterol: 30mgSodium: 150mgPotassium: 150mgFiber: 2gSugar: 10gVitamin A: 200IUCalcium: 20mgIron: 1mg NotesStore your Peanut Butter Bars in an airtight container at room temperature for up to 1 week, or refrigerate for up to 2 weeks. Tried this recipe?Let us know how it was!