Simple Table Recipes
Desserts

No-Bake Peanut Butter Bars

Peanut butter bars with a graham cracker base and a chocolate top, pressed into a pan and chilled until firm. No oven required.

Stacked peanut butter bars with a smooth dark chocolate topping
Prep
20 min
Cook
0 min
Rest
2 hr
Total
2 hr 20 min
Makes
16 bars
Difficulty
Easy
  • Measurements grams + cups
  • Cuisine American
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Why You'll Like This Recipe

  • Nothing goes in the oven, which makes this workable on a hot day when baking is unappealing.
  • The base is mixed and pressed in one bowl, and the topping is melted in another.
  • Firm from the fridge, softer at room temperature — you can pick which you prefer by when you take them out.

Ingredient Notes

Creamy peanut butter
Standard shelf-stable peanut butter, not natural. Natural peanut butter separates and carries more free oil, which makes the base greasy and slow to firm up. If natural is all you have, stir it thoroughly first and expect a softer bar.
Graham cracker crumbs
These provide structure — the base is essentially crumbs bound with fat and sugar. Digestive biscuits crushed fine work identically.
Peanut butter in the topping
Two tablespoons stirred into the melting chocolate keeps the topping from setting brittle, which is what causes it to shatter and lift away from the base when cut.

Equipment

  • 20 x 20 cm / 8 x 8 inch pan
  • Parchment paper
  • Large mixing bowl
  • Small saucepan or microwave-safe bowl
  • Offset spatula or flat-bottomed glass

Substitutions

Peanut butter
Almond butter or sunflower seed butter both work in the same quantities. Sunflower seed butter makes this nut-free if the graham crackers are too.
Graham crackers
Digestive biscuits, or crushed pretzels for a saltier base. Gluten-free graham-style crumbs work without adjustment.
Chocolate chips
Dark chocolate cuts the sweetness noticeably and is the better match for the sugary base. Milk chocolate makes a very sweet bar.

Storage & Freezing

Storing: Refrigerate in an airtight container for up to 1 week, with parchment between layers. They soften at warm room temperature, so keep them chilled until serving.

Freezing: Freeze for up to 3 months, either as a slab or as cut bars separated by parchment. They can be eaten more or less straight from the freezer.

Frequently Asked Questions

Why are my no-bake peanut butter bars crumbly?

The base was not pressed firmly enough, or there was not quite enough fat to bind the crumbs. Press hard with the flat base of a glass, and if the mixture still looks dry and sandy, work in another tablespoon of melted butter.

Why did the chocolate topping crack when I cut it?

It set fully solid before cutting. Score the portions after about 30 minutes in the fridge and finish chilling, or warm the knife under hot water and dry it before each cut. Stirring peanut butter into the chocolate also keeps it from setting brittle.

Can I use natural peanut butter?

You can, but the loose oil makes a softer, greasier base that takes longer to firm. Stir the jar thoroughly first and give the bars an extra hour in the fridge.

How long do they need to chill?

Two hours is the minimum for a clean cut. They will not be harmed by longer, and overnight is fine.

Can I make these dairy free?

Yes. Use a plant-based block butter in the base and dairy-free chocolate for the topping. Check the graham crackers, which often contain butter or honey.

Why is my chocolate topping dull or streaky?

The chocolate was overheated. Melt it gently in short bursts or over barely simmering water, and stop while a few pieces remain — stirring finishes it without pushing the temperature too high.

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