Best Brownies

1⁄2 cup butter
1 cup sugar
2 eggs
1 teaspoon vanilla extract
1⁄3 cup unsweetened cocoa powder
1⁄2 cup all-purpose flour
1⁄4 teaspoon salt
1⁄4 teaspoon baking powder
1⁄2 cup dark chocolate chips

Preheat oven to 350 degrees F (175 degrees C). Grease and flour an 8-inch square pan.

In a large saucepan, melt 1/2 cup butter. Remove from heat, and stir in sugar, eggs, and 1 teaspoon vanilla. Beat in 1/3 cup cocoa, 1/2 cup flour, salt, and baking powder. Spread batter into prepared pan.

Bake in preheated oven for 30 - 35 minutes. Do not overcook.