Why You’ll Love This Recipe

I love these peanut butter granola bars because they require simple ingredients and very little hands-on preparation. The peanut butter gives them a creamy, nutty flavor, while the oats create a hearty, chewy texture.

I also like how easy they are to customize. I can add chocolate chips, chopped nuts, dried fruit, seeds, or coconut depending on what I have available. They are also ideal for meal prep because I can make a batch ahead of time and store individual bars for quick snacks throughout the week.

Ingredients

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

2 1/2 cups old-fashioned rolled oats
1 cup creamy peanut butter
1/2 cup honey or maple syrup
1/4 cup brown sugar
1 teaspoon vanilla extract
1/2 teaspoon ground cinnamon
1/4 teaspoon salt
1/2 cup mini chocolate chips
1/3 cup chopped peanuts
2 tablespoons chia seeds or ground flaxseed, optional

Directions

I line an 8-inch square baking pan with parchment paper, leaving some parchment hanging over the edges so I can easily lift the bars from the pan later.
I add the oats, cinnamon, salt, chopped peanuts, and chia seeds or flaxseed, if using, to a large mixing bowl.
I place the peanut butter, honey or maple syrup, and brown sugar in a small saucepan over low to medium-low heat. I stir until the mixture is smooth and the sugar has dissolved.
I remove the peanut butter mixture from the heat and stir in the vanilla extract.
I pour the warm peanut butter mixture over the oats. I stir thoroughly until all of the oats are evenly coated.
I let the mixture cool for a few minutes before folding in the mini chocolate chips so they don’t completely melt.
I transfer the mixture to my prepared pan. I press it down very firmly into an even layer. I find that firmly compacting the mixture is important for bars that hold together after cutting.
I refrigerate the pan for at least 1 to 2 hours, or until the granola mixture is firm.
I use the parchment paper to lift the chilled granola from the pan and place it on a cutting board.
I cut it into 12 bars and keep the bars chilled until I’m ready to serve them.

Servings and Timing

This recipe makes approximately 12 granola bars.

Prep time: 15 minutes
Chill time: 1–2 hours
Total time: 1 hour 15 minutes to 2 hours 15 minutes
Servings: 12 bars

I usually cut the mixture into 12 rectangular bars, but I can make smaller squares when I want bite-sized snacks.

Variations

For chocolate peanut butter granola bars, I add extra mini chocolate chips or drizzle melted chocolate over the chilled bars before cutting them.

For peanut butter and jelly granola bars, I add finely chopped dried strawberries, raspberries, or cranberries. I like how the fruity flavor pairs with the peanut butter.

When I want extra crunch, I mix in chopped peanuts, almonds, pecans, or sunflower seeds.

For a coconut version, I add shredded coconut to the oat mixture. I can lightly toast the coconut first when I want a deeper flavor.

If I want a little more texture and sweetness, I add raisins, dried cranberries, chopped dates, or other finely chopped dried fruit.

I can also replace the peanut butter with another nut or seed butter. I keep in mind that the consistency of the mixture may change depending on the type I use.

Storage/Reheating

I store my peanut butter granola bars in an airtight container in the refrigerator for up to 1 week. I separate layers with parchment paper to keep the bars from sticking together.

For longer storage, I wrap the individual bars and place them in a freezer-safe container or bag. I can freeze them for up to 3 months. I let a frozen bar thaw in the refrigerator or at room temperature before eating it.

These granola bars don’t need reheating. I prefer eating them chilled for a firmer texture, but I can leave one at room temperature for several minutes when I want it softer and chewier.

FAQs

Why are my peanut butter granola bars falling apart?

I usually find that granola bars fall apart when the mixture isn’t pressed firmly enough into the pan or when there isn’t enough sticky binder. I press the mixture down very firmly and give the bars enough time to chill completely before cutting them.

Can I use quick oats instead of old-fashioned rolled oats?

Yes, I can use quick oats, although the texture will be softer and less chewy. I prefer old-fashioned rolled oats because they give my granola bars more structure.

Can I make peanut butter granola bars without honey?

Yes. I can replace the honey with maple syrup, although the bars may have a slightly softer texture because honey is particularly sticky. I make sure to press the mixture firmly into the pan and chill it thoroughly.

Can I make these granola bars without chocolate chips?

Absolutely. I can leave out the chocolate chips or replace them with chopped nuts, seeds, dried fruit, or shredded coconut. The basic peanut butter and oat mixture works well with many different additions.

Do peanut butter granola bars need to be refrigerated?

I prefer keeping homemade peanut butter granola bars refrigerated because they stay firmer and hold their shape better. Refrigeration also makes them convenient to store for several days. I can let a bar sit briefly at room temperature before eating when I prefer a softer texture.

Conclusion

Peanut Butter Granola Bars are one of my favorite homemade options when I want an easy snack that I can prepare ahead of time. The combination of chewy oats and creamy peanut butter creates a satisfying bar, while chocolate chips and chopped peanuts add extra flavor and texture.

Peanut Butter Granola Bars Recipe

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These Peanut Butter Granola Bars are chewy, satisfying, and packed with creamy peanut butter, hearty oats, chocolate chips, and crunchy peanuts. They are an easy make-ahead breakfast or grab-and-go snack.

Author: Laura
Prep Time: 15 minutes
Cook Time: 5 minutes
Total Time: 1 hour 15 minutes to 2 hours 15 minutes
Yield: 12 bars
Category: Snack
Method: No Bake
Cuisine: American
Diet: Vegetarian

Instructions

Line an 8-inch square baking pan with parchment paper, leaving an overhang for easy removal.
Add the oats, cinnamon, salt, chopped peanuts, and chia seeds or ground flaxseed, if using, to a large mixing bowl and stir to combine.
Add the peanut butter, honey or maple syrup, and brown sugar to a small saucepan. Heat over low to medium-low heat, stirring until smooth and the sugar has dissolved.
Remove the peanut butter mixture from the heat and stir in the vanilla extract.
Pour the warm peanut butter mixture over the oat mixture and stir thoroughly until the oats are evenly coated.
Allow the mixture to cool for a few minutes, then fold in the mini chocolate chips.
Transfer the mixture to the prepared pan and press it very firmly into an even, compact layer.
Refrigerate for 1 to 2 hours, or until completely firm.
Use the parchment paper to lift the chilled granola mixture from the pan and transfer it to a cutting board.
Cut into 12 bars and keep chilled until ready to serve.

Notes

Press the granola mixture very firmly into the pan so the bars hold together after chilling and cutting.
For chocolate peanut butter bars, add extra chocolate chips or drizzle the chilled bars with melted chocolate.
For a peanut butter and jelly variation, add finely chopped dried strawberries, raspberries, or cranberries.
Chopped nuts, sunflower seeds, shredded coconut, raisins, dates, or other dried fruit can be used as additional mix-ins.
Another nut or seed butter can replace the peanut butter, although the final consistency may vary.
Store the bars in an airtight container in the refrigerator for up to 1 week, separating layers with parchment paper.
For longer storage, wrap individual bars and freeze in a freezer-safe container for up to 3 months.
No reheating is necessary. Serve chilled for a firmer texture or allow a bar to sit briefly at room temperature for a softer, chewier texture.

Nutrition

Serving Size: 1 bar
Calories: 310 kcal
Sugar: 18 g
Sodium: 150 mg
Fat: 17 g
Saturated Fat: 5 g
Unsaturated Fat: 11 g
Trans Fat: 0 g
Carbohydrates: 34 g
Fiber: 4 g
Protein: 9 g
Cholesterol: 1 mg