Katzen'S Chocolate Peanut Butter Brownies

• Brownie
• 1 cup butter or 1 cup margarine
• 2 cups sugar
• 2 teaspoons vanilla
• 4 eggs
• 3/4 cup cocoa
• 1 cup all-purpose flour
• 1/2 teaspoon baking powder
• 1/4 teaspoon salt
• 1 cup chopped nuts (I used walnuts)
• 1 cup peanut butter chips
• 3/4 cup peanut butter, crunchy, smooth (or a combination of both)
• Frosting
• 1/2 cup butter
• 3/4 cup cocoa
• 3 cups powdered sugar
• 1/2 cup milk
• 1 teaspoon vanilla extract
• 1/2 cup peanut butter chips

1. Brownies:.
2. Heat oven to 350 degrees.
3. Grease 13x9 inch baking pan.
4. Melt butter in microwave. Stir in sugar and vanilla. Beat in eggs, one at a time.
5. Add cocoa, flour, baking powder and salt; beat until well blended. Stir in nuts and 1 cup peanut butter chips. Pour batter into pan. Melt peanut butter in microwave, approximately 20 seconds, until soft. Drop by spoonfuls or pour over surface of brownie batter. Run a knife through the peanut butter/brownie batter, to swirl peanut butter through brownie batter. Ensure you pull the knife Bake 30-35 minutes or until brownies begin to pull away from sides.Cool completely.
6. Frosting:.
7. Melt butter; stir in cocoa. Add powdered sugar and milk, beating on medium speed to spreading consistency. Add more milk, if needed.
8. Spread on cooled brownies, sprinkle with 1/2 cup peanut butter chips.

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Taken from www.food.com/recipe/katzens-chocolate-peanut-butter-brownies-433214 (may not work)