INGREDIENTS
10 tbsp
unsalted butter
1 1/4 cups
sugar
3/4 cup
plus 2 tablespoons unsweetened cocoa powder (I prefer natural cocoa powder)
1/2 tsp
salt
1 tsp
baking powder
1 tsp
pure vanilla extract
2
large eggs
1/2 cup
all-purpose flour
1/2 cup
chocolate chips (optional)
1/2 cup
chopped walnuts (optional)