Place the butter and chocolate in a microwave-safe bowl and heat in 30-second intervals until the butter melts. Stir thoroughly, and if the chocolate hasn’t completely melted, microwave for an additional 15 seconds.
½ cup butter, 2 ounces unsweetened chocolate
Stir in the sugar and the vanilla.
1 cup sugar, 1 teaspoon vanilla
Allow the mixture to cool for 1-2 minutes, then stir in the eggs.
2 eggs
Add the flour and salt. Stir until combined.
1¼ cups flour, ¼ teaspoon salt
Spray a mini muffin tin with a nonstick spray. Use a small cookie scoop to scoop up the batter and place in muffin tin.
Place a mini peanut butter cup on top of the batter for each brownie bite.
24 mini peanut butter cups
Bake in a preheated 350°F oven for 15-17 minutes.
Allow brownie bites to cool, then remove from pan.
Store in an airtight pan at room temperature for 3-4 days.
Notes
Melt the butter and chocolate in the microwave in short increments. The chocolate will melt slower than the butter. Once the butter is melted, just let everything rest for a few minutes. The warm butter will continue to melt the chocolate slowly. Add back the microwave if needed.
The butter and chocolate can also be melted in a double boiler on the stovetop.
Make certain the mixture isn't too hot when you add the eggs. Let it cool for 1-2 minutes after adding the sugar, stirring from time to time.
Use a small cookie scoop to place the batter into the mini muffin tin.
Place the mini peanut butter cup in the center and press lightly into the batter.