No-Bake Reese’s Peanut Butter Bars

Table of contents

1. Why You’ll Love These No-Bake Reese’s Peanut Butter Bars
2. Ingredients You’ll Need
3. How to Make No-Bake Reese’s Peanut Butter Bars
4. Step 1: Line the Pan
5. Step 2: Mix the Base
6. Step 3: Press It In
7. Step 4: Melt the Topping
8. Step 5: Spread and Decorate
9. Step 6: Chill and Cut
10. Tips for the Best No-Bake Reese’s Peanut Butter Bars
11. Easy Variations
12. What to Serve With No-Bake Reese’s Peanut Butter Bars
13. How to Store and Reheat
14. In the Refrigerator
15. In the Freezer
16. Serving Leftovers
17. Can You Make It Ahead?
18. Frequently Asked Questions
19. Can I use natural peanut butter?
20. Why did my chocolate topping turn grainy?
21. Can I leave off the candy toppings?
22. No-Bake Reese’s Peanut Butter Bars Recipe
23. Ingredients
24. Instructions
25. Notes
26. Final Thoughts

These No-Bake Reese’s Peanut Butter Bars pair a thick, buttery peanut butter and graham cracker base with a glossy layer of melted chocolate and peanut butter chips. A scattering of Reese’s Pieces and mini peanut butter cups on top makes them look as fun as they taste.

There is no oven involved. You stir, press, melt, and chill, and the hands-on part takes about 15 minutes. After at least 2 hours in the fridge, the pan slices into 24 bars, perfect for bake sales, potlucks, and holiday cookie trays.

Why You’ll Love These No-Bake Reese’s Peanut Butter Bars

• No oven needed: A bowl, a microwave, and a pan are all it takes, which is handy on hot days.
• Ready in 15 minutes of work: The fridge does the rest while you get on with your day.
• Big batch: One 9×13-inch pan makes 24 bars, plenty for sharing.
• Kid-friendly project: Little helpers can stir the base and sprinkle on the candy.
• Make-ahead friendly: The bars keep well in the fridge and freeze nicely too.

Ingredients You’ll Need

The base and topping each use just a handful of simple ingredients.

• Graham cracker crumbs: These give the base structure and a light honey flavor. Chocolate graham crackers, vanilla wafers, or crushed Oreos can stand in.
• Creamy peanut butter: Choose a regular no-stir brand. Natural peanut butter separates and can make the base oily. Crunchy works if you want more texture.
• Butter: Melted butter helps bind the crumbs and sugar. Let it cool for a minute before mixing.
• Powdered sugar and light brown sugar: Powdered sugar keeps the base smooth, while brown sugar adds a soft caramel note.
• Chocolate chips and peanut butter chips: Melted together, they make a creamy topping. Dark chocolate chips give a less sweet result.
• Reese’s Pieces and mini peanut butter cups: Both are optional, but they add color and crunch.

How to Make No-Bake Reese’s Peanut Butter Bars

Step 1: Line the Pan

Line a 9×13-inch pan with parchment paper and leave some extra hanging over two sides. Those flaps make it easy to lift the whole slab out later.

Step 2: Mix the Base

In a large bowl, stir the peanut butter, melted butter, brown sugar, and vanilla until smooth. Add the powdered sugar and graham cracker crumbs and keep mixing until everything is evenly moistened.

Step 3: Press It In

Transfer the mixture to the pan and press it down firmly. The flat bottom of a measuring cup helps you get a level, compact layer that holds together when sliced.

Step 4: Melt the Topping

Put the chocolate chips and peanut butter chips in a microwave-safe bowl. Heat in 20 to 30-second bursts, stirring well each time, until smooth. Stop as soon as it is melted so the chocolate does not scorch.

Step 5: Spread and Decorate

Pour the melted chocolate over the base and spread it out evenly. While it is still soft, sprinkle on the Reese’s Pieces and mini peanut butter cups and press them in lightly.

Step 6: Chill and Cut

Refrigerate for at least 2 hours, until firm. Lift the slab out by the parchment, let it sit for 10 to 15 minutes at room temperature, and then cut it into squares.

Tips for the Best No-Bake Reese’s Peanut Butter Bars

• Press the base hard. A firmly packed base keeps the bars from crumbling when you cut them.
• Melt in short bursts. Chocolate can turn thick and grainy if it overheats, so stir often and keep the intervals short.
• Keep water away from the chocolate. Even a drop can make it seize, so use a dry bowl and spatula.
• Let them rest before slicing. A short stand at room temperature keeps the chocolate layer from cracking under the knife.
• Wipe the knife between cuts. A clean, sharp blade gives you neat edges every time.

Easy Variations

• Sweet and Salty: Finish with a light sprinkle of flaky sea salt or press crushed pretzels into the topping.
• All Chocolate Topping: Skip the peanut butter chips and use 2 cups of chocolate chips.
• Candy Swap: Use chopped full-size peanut butter cups, M&M’s, or chopped Snickers bars.
• Gluten-Free: Use gluten-free graham cracker crumbs and check the labels on the candy and chips.

What to Serve With No-Bake Reese’s Peanut Butter Bars

• A cold glass of milk
• Hot coffee for an afternoon treat
• A scoop of vanilla ice cream
• Fresh strawberries or banana slices
• A platter of other cookies and bars for a dessert table

How to Store and Reheat

In the Refrigerator

Keep the bars in an airtight container in the fridge for up to 5 days. They taste best cold and hold their shape better that way. Try not to leave them out at room temperature for more than 2 hours.

In the Freezer

These bars freeze well. Cut them into squares, wrap each one in plastic wrap and foil, and freeze for up to 3 months. Thaw them in the fridge before serving.

Serving Leftovers

There is no need to warm these up. Serve them straight from the fridge. If they get too soft after sitting out, return them to the fridge for 20 to 30 minutes to firm up again.

Can You Make It Ahead?

Absolutely. Make the bars up to 3 days before you need them and keep them covered in the fridge. They slice even more cleanly after an overnight chill.

Frequently Asked Questions

Can I use natural peanut butter?

It is best to avoid it. Natural peanut butter tends to separate, which can leave the base greasy and crumbly. A regular creamy brand gives the best texture.

Why did my chocolate topping turn grainy?

Either it got too hot or a little water got into the bowl. Melt it slowly in short intervals and keep all your tools completely dry.

Can I leave off the candy toppings?

Yes. The Reese’s Pieces and mini peanut butter cups are optional, and the bars are still rich and delicious without them.

Recipe

Print recipe

No-Bake Reese’s Peanut Butter Bars Recipe

Prep: 15 minutes Total: 2 hours 15 minutes Serves: 24 bars Calories: 270

Ingredients

For the base:

• 2 cups graham cracker crumbs
• 1 cup creamy peanut butter
• ½ cup butter, melted
• 1 cup powdered sugar
• ½ cup packed light brown sugar
• 1 teaspoon vanilla extract

For the topping:

• 1 cup chocolate chips
• 1 cup peanut butter chips
• ¼ cup Reese’s Pieces, optional
• ½ cup mini peanut butter cups, whole or chopped, optional

Instructions

1. Line a 9×13-inch baking pan with parchment paper, leaving an overhang for easy lifting.
2. In a large bowl, stir together the peanut butter, melted butter, brown sugar, and vanilla. Mix in the powdered sugar and graham cracker crumbs until evenly combined.
3. Press the mixture firmly into the prepared pan, using the bottom of a measuring cup to make an even layer.
4. Place the chocolate chips and peanut butter chips in a microwave-safe bowl. Microwave in 20 to 30-second intervals, stirring well after each, until melted and smooth. Do not overheat.
5. Spread the melted mixture evenly over the peanut butter base.
6. Sprinkle with Reese’s Pieces and mini peanut butter cups, gently pressing them into the topping before it sets.
7. Refrigerate for at least 2 hours, until firm.
8. Lift the bars from the pan using the parchment. Let stand at room temperature for 10 to 15 minutes, then cut into 24 squares with a sharp knife.

Notes

Wipe the knife clean between cuts for the neatest bars, and add a pinch of flaky sea salt on top if you like a sweet-salty finish. Store the bars in an airtight container in the refrigerator for up to 5 days and serve them chilled. The calorie estimate includes the optional candy toppings.

Final Thoughts

These No-Bake Reese’s Peanut Butter Bars are an easy way to get a chocolate and peanut butter fix without turning on the oven. If you make a batch, leave a comment below and tell us which toppings you used.