Name: Salted Nut Roll Bars
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Cuisine: American
Ingredients: 2 cups all-purpose flour; 1 cup packed light brown sugar; 1 teaspoon baking powder; ½ teaspoon baking soda; 1 large egg; ½ cup unsalted butter, melted; 1 teaspoon vanilla extract; 4 cups miniature marshmallows; 10 ounce bag peanut butter chips; ⅔ cup light corn syrup; ½ cup unsalted butter; 2 to 3 cups salted peanuts; 2 cups Rice Krispies cereal; Flaky sea salt, optional

Why You’ll Love Salted Nut Roll Bars Recipe

These bars are a great mix of textures and flavors. The base is tender and buttery, the marshmallows add a soft chewy layer, and the topping brings crunch from the peanuts and cereal. They are easy to make in a single baking dish, feed a crowd, and work well for parties, bake sales, and holiday trays. The sweet filling balanced with salty peanuts makes every bite extra satisfying.

Ingredients

(Tip: You’ll find the full list of ingredients and measurements in the recipe card below.)

2 cups all-purpose flour
1 cup packed light brown sugar
1 teaspoon baking powder
½ teaspoon baking soda
1 large egg
½ cup unsalted butter, melted
1 teaspoon vanilla extract
4 cups miniature marshmallows
1 10-ounce bag peanut butter chips
⅔ cup light corn syrup
½ cup unsalted butter
2 to 3 cups salted peanuts
2 cups Rice Krispies cereal
Flaky sea salt, optional

Directions

Preheat the oven to 350°F.

In a medium mixing bowl, beat together the flour, brown sugar, baking powder, baking soda, egg, melted butter, and vanilla extract until fully combined. Press the mixture into a 9×13 baking pan lined with parchment paper.

Bake the crust for 12 minutes.

Remove the crust from the oven and immediately spread the miniature marshmallows evenly over the top. Return the pan to the oven and bake for another 12 to 15 minutes, or until the marshmallows are puffed and lightly golden.

While the marshmallow layer bakes, combine the peanut butter chips, corn syrup, and butter in a medium saucepan over medium heat. Stir until the mixture is melted and smooth.

Stir the salted peanuts and Rice Krispies cereal into the melted mixture until evenly coated.

Spread the topping over the warm marshmallow layer, smoothing it out evenly across the surface.

Let the bars cool completely in the pan. Once cooled, lift them out using the parchment paper and cut into bars.

Servings and timing

This recipe makes 24 servings.

Preparation and baking take about 45 minutes total, not including cooling time. You can expect about 15 minutes of prep time, 24 to 27 minutes of baking time, and additional time for the bars to cool completely before slicing.

Variations

For a more candy bar-like flavor, swap some of the peanut butter chips for butterscotch chips. You can also use chopped dry roasted peanuts for an even deeper nutty taste.

To add more crunch, stir in a little extra Rice Krispies or a handful of chopped pretzels with the topping mixture.

For a richer finish, sprinkle flaky sea salt over the top while the bars are still slightly warm.

You can also try adding a small amount of chopped roasted almonds or cashews along with the peanuts for a different twist on the classic flavor.

Storage/Reheating

Store the bars in an airtight container at room temperature for up to 4 days. If your kitchen is warm, you can refrigerate them to help the topping stay firm.

For longer storage, place the bars in a freezer-safe container with parchment between layers and freeze for up to 2 months. Thaw at room temperature before serving.

These bars do not need reheating, but if you prefer a softer texture, let refrigerated bars sit at room temperature for 15 to 20 minutes before eating.

FAQs

Can I use regular marshmallows instead of miniature marshmallows?

Yes, but mini marshmallows melt and spread more evenly. If using regular marshmallows, cut them into smaller pieces for better coverage.

Do I need to line the pan with parchment paper?

Yes, parchment paper makes it much easier to lift the bars out cleanly and slice them neatly once cooled.

Can I use crunchy peanut butter instead of peanut butter chips?

Peanut butter chips are the better choice for structure and sweetness in this recipe. Crunchy peanut butter may change the texture and make the topping softer.

How do I know when the marshmallows are ready?

They should be puffed up and just beginning to turn golden on top. That is the best time to add the peanut topping.

Can I make these bars ahead of time?

Yes, these bars are a great make-ahead dessert. You can prepare them a day in advance and store them covered until ready to serve.

Why is my topping too thick to spread?

The mixture can firm up quickly as it cools. Spread it over the marshmallow layer as soon as the peanuts and cereal are stirred in.

Can I use unsalted peanuts?

Yes, but the bars will lose some of their sweet-and-salty balance. Adding a light sprinkle of flaky sea salt on top can help.

How should I cut the bars cleanly?

Let them cool completely first, then use a sharp knife. Wiping the knife between cuts can help keep the edges cleaner.

Can I make these in a smaller pan?

A smaller pan will make thicker bars and may require a longer baking time. A 9×13 pan is ideal for the best texture and even baking.

Are these bars good for parties and bake sales?

Yes, they are excellent for sharing because they make a large batch, hold their shape well once cooled, and have a crowd-pleasing sweet-and-salty flavor.

Conclusion

Salted Nut Roll Bars are an easy dessert that delivers big flavor with very little fuss. With their buttery crust, gooey marshmallow center, and crunchy peanut topping, they are a fun homemade treat that feels both nostalgic and irresistible. Whether you make them for a party, holiday tray, or just to satisfy a sweet craving, these bars are sure to disappear fast.

Salted Nut Roll Bars