1/2 cup butter or margarine — softened
1 cup sugar
1 teaspoon vanilla
2 eggs
1 1/4 cups flour
1/8 teaspoon baking soda
3/4 cup chocolate syrup
1 cup peanut butter chips
***FROSTING*** 1/3 cup sugar
1/4 cup evaporated milk
2 tablespoons butter
1 cup peanut butter chips
1 teaspoon vanilla
Cream butter or margarine, sugar and vanilla. Add eggs; beat well. Combine flour and baking soda; add alternately with chocolate syrup to creamed mixture. Stir in peanut butter chips. Pour batter into greased 9 x 13 pan; bake at 350~ for 30 to 35 minutes. Cool; frost with Peanut Butter Brownie Frosting.
Frosting: Combine sugar, evaporated milk and butter in a small saucepan. Stir over medium heat until mixture comes to full boil; remove from heat. Quickly stir in 1 cup peanut butter chips until melted; add vanilla. Beat to spreading consistency; frost brownies. From: Best Recipes.