3/4 cup butter or margarine, melted
1 1/2 cups granulated sugar
1 1/2 teaspoons vanilla extract
3 eggs
3/4 cup all-purpose flour
1/2 cup Hershey's Cocoa
1/2 teaspoon baking powder
1/2 teaspoon salt

Heat oven to 350 degrees F. Grease 8-inch square baking pan.

In bowl, stir together butter, sugar and vanilla extract. Add eggs; with spoon, beat well.

In separate bowl, stir together flour, cocoa, baking powder and salt; gradually add to egg mixture, beating until well blended. Spread batter evenly in prepared pan. Bake 40 to 45 minutes or until brownies begin to pull away from sides of pan. Cool completely; cut into squares.

Variation
Stir 1 cup Reese's Peanut Butter Chips or Hershey's Semi-Sweet Chocolate Chips into batter before spreading in pan.