Ingredients

• unsalted butter - ½ cup
• semi-sweet chocolate chips - 1 cup
• granulated sugar - 1 cup
• brown sugar - ½ cup
• large eggs - 3
• vanilla extract - 1 teaspoon
• all-purpose flour - ¾ cup
• unsweetened cocoa powder - ¼ cup
• instant espresso powder - 1 tablespoon
• baking powder - ½ teaspoon
• salt - ¼ teaspoon
• walnuts, chopped - 1 cup

Instructions

1. 1.

   Preheat the oven to 350°F (175°C) and line a 9x9 inch baking pan with parchment paper.

2. 2.

   In a medium saucepan, melt the butter over low heat. Add the chocolate chips and stir until smooth. Remove from heat.

3. 3.

   In a large bowl, combine the granulated sugar, brown sugar, and eggs. Beat until well combined.

4. 4.

   Stir in the vanilla extract and the melted chocolate mixture.

5. 5.

   In a separate bowl, whisk together the flour, cocoa powder, espresso powder, baking powder, and salt.

6. 6.

   Gradually add the dry ingredients to the wet ingredients, mixing until just combined.

7. 7.

   Fold in the chopped walnuts.

8. 8.

   Pour the batter into the prepared pan and spread evenly.

9. 9.

   Bake for 25-30 minutes or until a toothpick inserted in the center comes out with a few moist crumbs.

10. 10.

    Allow to cool completely in the pan before cutting into squares.

Nutritional Facts