Peanut Butter Cookie Dough Bars

Let's Bake

No Bake Peanut Butter Cookie Dough Bars

Yield Serves 12 1x
Prep: 200 minutesTotal: 3 hours 20 minutes

No bake peanut butter cookie dough bars topped with melted peanut butter and chocolate and PLENTY of Reese’s peanut butter cups.


  • 115 grams (1/2 cup or 1 stick) unsalted butter
  • 90 grams (1/2 cup) brown sugar
  • 50 grams (1/4 cup) caster sugar
  • 1 teaspoon vanilla extract
  • 125 grams (1/2 cup) smooth peanut butter
  • 210 grams (1 and 1/2 cups) plain flour, heat treated*
  • 2 teaspoons milk
  • 75 grams (1/2 cup) milk or dark chocolate chips

Chocolate topping

  • 200 grams (1 and 1/3 cups) milk or dark chocolate
  • 1 tablespoon peanut butter
  • 150 grams (1 cup) Reese’s peanut butter cups, halved


  1. Line an 8-inch square pan with baking paper and set aside.
  2. Roughly chop the butter into chunks and place in a large mixing bowl, along with the sugars. Using an electric beater, cream the butter and sugar until combined.
  3. Add the vanilla and peanut butter and beat for 30 seconds or so, until smooth and creamy. Then add the flour. If the mixture is a little dry, add the milk, one teaspoon at a time. Stir in the chocolate chips.
  4. Place your cookie dough in your prepared tin and press down gently to form one even layer – make sure you get right in those corners. Then, melt your chocolate in the microwave, stirring in-between 20 second bursts. Stir through your peanut butter. If it’s a bit lumpy, just microwave it for 10 more seconds until smooth.
  5. Pour your chocolate over the top of the cookie dough, spreading to the edges. Pop your peanut butter cups on top and put in the fridge for 2-3 hours to set.
  6. To serve, leave the bars at room temperature for 10 minutes, then use a hot knife to cut through the chocolate. Keep refrigerated for up to 5 days.


Heat treated flour: If you prefer not to eat raw flour due to bacteria concerns, you can use heat treated flour. You can buy this as a product online. Or Sally’s Baking Addiction suggests the following method for heat treating flour at home.

  1. Spread your plain or all purpose flour onto a rimmed baking tray. Use a little more than the recipe calls for in case some clumps or discolours.
  2. Place in oven that’s preheated to 150 C (300 F). Stir flour occasionally and check every 2 minutes until the flour has reached 74 C (165 F). You can test this using an instant-read thermometer.
  3. Leave to cool completely. Then sift flour, discarding any lumps, and give it a quick whisk before using as per normal.

Nutrition Information

Serving Size: 1 bar Calories: 441
Nutrition information is a guide only.
Author: Jessica HolmesCategory: DessertCuisine: American
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