These no-bake peanut butter bars combine a creamy peanut butter base with a smooth dark chocolate topping. Made with a handful of ingredients and no oven, they are an easy dessert that chills in the refrigerator until firm and sliceable.
Why You'll Love My No-Bake Peanut Butter Bars
- No baking required.
- Made with a handful of simple ingredients.
- Easy to prepare ahead of time.
- Rich peanut butter flavor with a smooth chocolate topping.
When I first started making peanut butter desserts, I understood why they are so popular in American baking. Peanut butter was not something I grew up eating often in Spain, but once I paired it with dark chocolate, it made complete sense. These bars are simple, rich, and much easier than making a baked dessert from scratch. If you enjoy this flavor combination, my Peanut Butter Mousse is another easy option with a creamy texture.
Now I make these bars whenever I need a dessert that can be prepared ahead of time. The peanut butter layer is rich and smooth, while the dark chocolate topping adds just enough contrast to keep every bite balanced. Since there is no baking involved, they are especially useful during warmer months when I would rather keep the oven off. For more simple chilled desserts, my No-Bake Oreo Cheesecake and Chocolate Biscuit Cake are both great recipes to try next.
Key Ingredients in Peanut Butter Bars
You'll find the exact measurements in the recipe card, but here's a closer look at key ingredients and why I use them.
- Peanut Butter, Butter, and Powdered Sugar: I use creamy peanut butter and softened butter to create a smooth, rich base that is easy to press into the pan. The powdered sugar sweetens the mixture and helps the bars hold their shape after chilling.
- Dark Chocolate and Butter: The dark chocolate creates a smooth topping that balances the sweetness of the peanut butter layer. I also add a little butter to help the chocolate melt smoothly and slice more easily once chilled.
How to Make No-Bake Peanut Butter Bars
You can find the complete printable recipe with measurements below, but for now, here's a quick overview of how it goes:
1. Prepare the Peanut Butter Base: In a large bowl, mix softened butter and peanut butter until smooth. Gradually add powdered sugar, stirring until combined.
2. Shape the Base: Line an 8x8-inch (20x20 cm) baking pan with parchment paper. Press the peanut butter mixture evenly into the dish, smoothing it with a spatula or a small roller.
3. Melt and Spread the Chocolate: Melt the chocolate with butter in a microwave-safe bowl, heating in 30-second intervals and stirring until smooth. Pour over the peanut butter layer and spread evenly.
4. Chill and Slice: Refrigerate for 1-3 hours until firm. Lift it out using the parchment paper and cut into peanut butter bars or squares.
Tips for Perfect No-Bake Peanut Butter Bars
Press the Base Firmly: I take an extra minute to press the peanut butter mixture firmly into the pan. A compact base holds together better and gives the bars cleaner slices once chilled.
Use a Metal Pan for Faster Chilling: When I want the bars ready sooner, I use a metal baking pan because it helps the mixture chill and firm up more quickly than glass.
Add a Pinch of Sea Salt: If I am serving these for adults, I sometimes add a small pinch of flaky sea salt on top of the chocolate. It balances the sweetness and makes the peanut butter flavor stand out more.
How to Store Peanut Butter Bars
Store the bars covered in the refrigerator for up to 1 week. I like to keep them in a sealed container so they stay fresh and firm.
For longer storage, freeze individual bars for up to 2 months. Thaw them overnight in the refrigerator before serving.
Try These Peanut Butter Recipes Next!
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Recipe
No-Bake Peanut Butter Bars
Ingredients
Peanut Butter Layer
- 375 g creamy peanut butter
- 120 g unsalted butter - softened
- 300 g powdered sugar
Chocolate Layer
- 250 g dark chocolate - chopped
- 1 tablespoon unsalted butter
Instructions
- In a large bowl, combine 375 g creamy peanut butter and 120 g unsalted butterj softened. Mix until smooth and creamy.
- Gradually add 300 g powdered sugar and continue mixing until a thick, smooth mixture forms.
- Line an 8 x 8-inch (20 x 20 cm) baking pan with parchment paper, leaving some overhang on the sides. Press the peanut butter mixture firmly into the pan and smooth the top with a spatula or a small roller.
- Break 250 g dark chocolate into pieces and place it in a microwave-safe bowl with 1 tbsp unsalted butter. Microwave in 30-second intervals, stirring after each interval, until melted and smooth.
- Pour the melted chocolate over the peanut butter layer and spread it evenly.
- Refrigerate for at least 1 hour, preferably 2-3 hours, until firm.
- Lift the bars out using the parchment paper overhang and slice into squares or bars before serving.
Notes
Nutrition
Nutritional information is based on third-party calculations and should be considered an estimate only. Actual nutritional content will vary based upon brands used, measuring methods, cooking method, portion sizes, and more.
Sandra says
These peanut butter bars look amazing! Love how easy they are to make, can’t wait to try them!