In a small saucepan, combine 1 cup of lightly packed brown sugar, a pinch of salt, and a splash of water over medium heat. Stir gently until the sugar is moistened, ensuring everything is well mixed. Watch closely for about 4-5 minutes until the mixture begins to bubble and turns a dark brown color.

Remove the saucepan from the heat, add 4 tablespoons of unsalted butter to the hot caramel, and stir constantly until fully combined and smooth.

Gradually pour in 2 cups of whole milk or preferred non-dairy milk while continuously stirring the caramel sauce.

Return the saucepan to medium-low heat, stirring until the Butterscotch Steamer is steaming but not boiling, for about 2-3 minutes.

Once steaming, remove from heat and stir in 1 teaspoon of high-quality vanilla extract. Serve immediately in a cozy mug.