Ingredients for 12 servings

½ tsp peppermint extract
2/3 cup water
¾ cup dark chocolate & mint chips, divided
1 cup brown sugar
1 cup flour
1 ½ tsp baking powder
2 eggs
3 tbsp cocoa powder
6 tbsp butter, softened

Directions

Preheat oven to 325°F. Line or grease 12 muffin cups.

Combine ¼ cup dark chocolate & mint chips and water in a small bowl and heat in the microwave on high for 30 seconds. Stir until smooth.

Beat butter, mint extract, sugar, and eggs with an electric mixer until light and fluffy.

Stir in the flour, baking powder, cocoa, warm chocolate mixture, and remaining dark chocolate & mint chips until combined. Divide the mixture among the muffin cups and bake for 30 minutes. Cool for at least 10 minutes and then turn the muffins out onto a cooling rack.