Best Brownies

I've been using this recipe for years. I got the recipe off a can of Hershey's Cocoa.

• Ready In: 25 mins
• Serves: 16
• Yields: 16 brownies

Ingredients

• 1⁄2 cup butter or 1⁄2 cup margarine, melted
• 1  cup sugar
• 1  teaspoon vanilla extract
• 2  eggs
• 1⁄2 cup all-purpose flour
• 1⁄3 cup  hershey's  cocoa
• 1⁄4 teaspoon baking powder
• 1⁄4 teaspoon salt (optional)
• 1⁄2 cup  chopped  nuts (optional)
•  powdered sugar

Directions

1. Heat oven to 350 degrees. Grease 9 inch square pan.
2. Stir togeter butter, sugar and vanilla in bowl. Add eggs, beat well with spoon. Stir together flour, cocoa, baking powder and salt; gradually add to egg mixer, beating until well blended. Stir in nuts in desired. Spread batter evenly into prepared pan.
3. Bake 20 to 25 minutes or until brownies begin to pull away from sides of pan.Sprinkle with powder sugar. Cool completely in pan on wire rack. Cut into squares.