Ingredients

• cooking spray
• 0.75 cups all-purpose flour
• 0.5 cups unsweetened cocoa powder
• 0.25 teaspoons salt
• 0.25 teaspoons baking soda
• 1.25 cups white sugar
• 0.5 cups butter , melted and cooled
• 1 tablespoon vanilla extract
• 2 eggs
• 1 cup semisweet chocolate chips
• 0.5 cups chopped walnuts
• 1.5 tablespoons all-purpose flour

Instructions

1. 1 Preheat the oven to 350 degrees F (175 degrees C). Line a 2.2-quart glass baking dish with aluminum foil; coat with cooking spray.
2. 2 Sift ¾ cup flour, cocoa powder, salt, and baking soda together into a bowl; set aside.
3. 3 Beat sugar, butter, and vanilla extract with an electric mixer in a separate bowl until smooth and fluffy; beat in eggs, one at a time, until thoroughly combined.
4. 4 Add flour mixture to sugar mixture, in two to three additions, mixing slowly until batter is just combined. Toss chocolate chips and walnuts with remaining 1 ½ tablespoons flour in a bowl; fold into batter.
5. 5 Pour batter into the prepared baking dish; level top using a rubber spatula.
6. 6 Bake in the preheated oven until edges are set and start to pull away from the sides of the pan, 20 to 30 minutes. Cool until center firms up.

Nutrition per serving