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Chocolate Peanut Butter Oatmeal Bars: The Ultimate No-Bake Treat

Chocolate Peanut Butter Oatmeal Bars

No-bake bars featuring a chewy peanut butter oat base topped with smooth chocolate. Ready in 15 minutes (plus chilling time), these require no oven and just 7 simple ingredients. Perfect for easy desserts, snacks, or anytime chocolate-peanut butter cravings strike!

Ingredients

For the Oat Base:

  • 3 cups old-fashioned rolled oats
  • 1 cup natural peanut butter (creamy or crunchy)
  • ½ cup honey or maple syrup
  • ¼ cup coconut oil, melted
  • 1 teaspoon vanilla extract
  • ½ teaspoon salt

For the Chocolate Topping:

  • 2 cups semi-sweet chocolate chips
  • ½ cup peanut butter
  • 2 tablespoons coconut oil (optional)

Instructions

  • Prepare pan: Line an 8×8-inch pan with parchment paper, leaving overhang on two sides. Lightly grease the parchment.
  • Make base: In a large microwave-safe bowl, combine peanut butter, honey, coconut oil, vanilla, and salt. Microwave 30-45 seconds until warm and fluid. Stir until smooth.
  • Add oats: Add oats to the peanut butter mixture. Stir vigorously until every oat is completely coated and the mixture is uniform.
  • Press firmly: Transfer mixture to prepared pan. Using your hands or the bottom of a measuring cup, press very firmly and evenly into the pan. The base should be compact and solid.
  • Make chocolate topping: In a microwave-safe bowl, combine chocolate chips, peanut butter, and coconut oil. Microwave in 30-second intervals, stirring between each, until completely melted and smooth (1-2 minutes total).
  • Assemble: Pour chocolate mixture over pressed oat base. Spread evenly to edges using a spatula.
  • Chill: Refrigerate uncovered for at least 2 hours until chocolate is completely set and firm.
  • Cut and serve: Use parchment handles to lift bars from pan. Cut into 16 squares with a sharp knife, wiping blade between cuts.

Notes

  • Old-fashioned rolled oats are essential—don’t use quick oats
  • Press the base layer VERY firmly for bars that hold together
  • Natural peanut butter or conventional both work
  • Chill fully before cutting for cleanest slices
  • For thinner bars, use a 9×13-inch pan
  • Substitute almond butter or sunflower seed butter for peanut butter
  • Use dark chocolate chips for less sweet version
  • Bars freeze beautifully for up to 3 months
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