Preheat your oven to 350°F (175°C) and prepare a 9x13-inch baking pan by greasing or lining it with parchment paper.

In a mixing bowl, combine 1 cup peanut butter with 1 cup granulated sugar until smooth. Add in 2 room temperature eggs and mix until fully incorporated.

In a separate bowl, whisk together 2 cups all-purpose flour and 2 teaspoons baking powder.

Gradually fold the dry ingredients into the wet mixture until just combined, keeping the dough slightly thick and sticky.

Spread the batter evenly into the prepared pan and bake for approximately 20 minutes or until golden around the edges.

Immediately place unwrapped Hershey's Kisses on the warm bars in a 4x6 grid pattern and let cool completely before cutting.