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Peanut Butter and Milk Chocolate Chip Brownie Bars


3 hours 30 minutes
Skill Level
24 bars

REESE’S Peanut Butter makes everything better – and these brownies are no exception. They start with a fudgy base, then get a creamy layer that’s loaded with milk chocolate and peanut butter chips. The result is a seriously delicious snack.

Ingredients & Directions

Prep Time
14 minutes
Bake Time
43 minutes
Cool Time
2 hours 30 minutes


  • 6 Tbsps
    butter or margarine, melted
  • 1-1/4 cups
  • 2 tsps
    vanilla extract, divided
  • 3
    eggs, divided
  • 1 cup
    all-purpose flour, plus 2 tablespoons
  • 1/3 cup
    HERSHEY'S Cocoa
  • 1/2 tsp
    baking powder
  • 1/2 tsp
  • 1 can
    sweetened condensed milk (14 oz.) (not evaporated milk)
  • 1/2 cup
    REESE’S Creamy Peanut Butter
  • 1 cup
    HERSHEY'S Milk Chocolate Chips, divided
  • 1 cup
    REESE'S Peanut Butter Chips, divided
  • 3/4 tsp
    shortening (do not use butter, margarine, spread or oil)

Step-By-Step Directions

Equipment Needed 
oven oven
13x9x2-inch baking pan 13x9x2-inch baking pan
mixing bowl mixing bowl
measuring cups measuring cups
rubber scraper rubber scraper
wire rack wire rack
microwave-safe bowl microwave-safe bowl
microwave microwave

Heat oven to 350°F. Grease 13x9x2-inch baking pan.


Stir together butter, sugar and 1 teaspoon vanilla in large bowl. Add 2 eggs; stir until blended. Stir together flour, cocoa, baking powder and salt. Add to egg mixture, stirring until blended. Spread in prepared pan. Bake 20 minutes.


Meanwhile, stir together sweetened condensed milk, peanut butter, remaining egg and remaining 1 teaspoon vanilla extract. Pour evenly over hot brownie. Set aside 1 tablespoon each milk chocolate chips and peanut butter chips; sprinkle remaining chips over peanut butter mixture. Return to oven; continue baking 20 to 25 minutes or until peanut butter layer is set and edges begin to brown. Cool completely in pan on wire rack.


Stir together remaining milk chocolate chips, remaining peanut butter chips and shortening in small microwave-safe bowl. Microwave at Medium (50%) 30 seconds; stir. If necessay, microwave at Medium an additional 15 seconds at a time, stirring after each heating, until chips are melted and mixture is smooth when stirred. Drizzle over top of bars. When drizzle is firm, cut into bars. Store loosely covered at room temperature.


Instead of melting remaining peanut butter chips and milk chocolate chips together, you can melt each chip separately with 1/2 teaspoon shortening and have a two-toned drizzle

Additional questions?