peanut butter oat bars

Easy No-Bake Peanut Butter Oat Bars

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As someone who cares deeply about both health and sustainability, I’ve always loved making simple, healthy snacks for my family. These no-bake peanut butter oat bars are a longtime favorite in our house. When my kids were little, they’d often find these tucked into their school lunches. Now that they’re grown, I still make them regularly for my husband and myself as a quick, grab-and-go snack.

One of the things I love most about these bars is how easy they are to make. They only require a handful of pantry staples, come together in minutes, and can be stored in the fridge or freezer so they’re ready whenever you need them. Let me walk you through what you need and how I make them.

What’s In these Peanut Butter Oat Bars?

One of the best things about these no-bake peanut butter oat bars is how simple and adaptable the ingredient list is. Here’s what you’ll need, along with some ideas for substitutions to make the recipe your own:

  1. Peanut Butter (2 cups)

    • The creamy base that holds everything together while adding protein and healthy fats.
    • Substitution: Use almond butter, sunflower seed butter, or any other nut or seed butter for a different flavor or to accommodate allergies.
  2. Honey (1 cup)

    • Acts as a natural sweetener and a binding agent to keep the bars from falling apart.
    • Substitution: Swap it out for maple syrup or agave nectar for a vegan option or a slightly different sweetness profile.
  3. Vanilla Extract (1 teaspoon)

    • Adds a touch of warmth and depth to the flavor.
    • Substitution: Use almond extract for a nuttier flavor, or skip it if you don’t have any on hand.
  4. Sea Salt (1 teaspoon)

    • Balances the sweetness and enhances the other flavors.
    • Substitution: Regular table salt works just as well, though you may want to use slightly less since it’s finer.
  5. Rolled Oats (5 cups)

    • The heart of the recipe, providing texture, fiber, and bulk to the bars.
    • Substitution: Use quick oats for a softer texture or gluten-free oats if you’re accommodating dietary restrictions.
  6. Add-Ins (½ cup)

    • This is where you can get creative! Add some fun and flavor with chocolate chips, dried cranberries, chopped nuts, shredded coconut, or seeds like chia or flax.
    • Substitution: You can skip the add-ins altogether, but I highly recommend using them for an extra boost of flavor and texture.
peanut butter oat bars

Ingredients

  • 2 cups peanut butter
  • 1 cup honey
  • 1 teaspoon vanilla extract
  • 1 teaspoon sea salt
  • 5 cups rolled oats
  • ½ cup add-ins (raisins, chocolate chips, nuts, dried fruit, etc.)

Instructions

  1. Mix the Ingredients
    In a stand mixer fitted with a paddle attachment, combine the peanut butter, honey, vanilla extract, sea salt, and rolled oats. Mix everything together until the oats are fully coated and the mixture is well combined. Don’t worry if you don’t have a stand mixer; a large bowl and a sturdy spatula will do the trick just as well. Add your chosen mix-ins and stir until evenly distributed.

  2. Prepare the Pan
    Line a 9X13 bar pan or baking tray with parchment paper. Transfer the mixture onto the tray, spreading it out evenly. Use a spatula or lightly buttered hands to press the mixture into an even layer about ½ inch thick.

  3. Set the Bars
    Place the tray in the refrigerator and allow the bars to chill until they’re firm to the touch. This usually takes about an hour.

  4. Cut
    Once the bars are set, take the tray out of the refrigerator and cut the mixture into your desired bar size. Store in fridge for up to 2 weeks for an easy grab and go snack. To prevent sticking, place parchment between layers in your storage container.  

  5. Store and Enjoy
    For longer storage, individually wrap each bar in parchment and pop them in the freezer. Simply grab one when you need a quick, healthy snack!

peanut butter oat bars

Benefits of No-Bake Recipes

No-bake recipes are a lifesaver for busy days or when you’re craving something sweet but don’t want to spend hours in the kitchen. Here are just a few reasons why I love no-bake recipes like these peanut butter oat bars:

  • Time and Energy Saving – These peanut butter oat bars come together in minutes—no cooking, preheating, or babysitting required. Plus, no-bake recipes use less energy, making them a more sustainable option.
  • Health Benefits – Packed with oats, nut butter, and honey, these peanut butter oat bars are rich in protein, fiber, and natural sweetness. They’re free from processed sugars and preservatives, making them a healthier, customizable alternative to store-bought snacks.
  • Lifestyle Suitability – Perfect for busy craving a homemade snack. They’re ideal for school lunches, post-workout refueling, or as a quick breakfast on the go.
peanut butter oat bars
Storing no-bake peanut butter oat bars

Storage and Serving Suggestions

How to Store Your Bars

  • For short-term storage, keep the bars in an airtight container in the refrigerator. They’ll stay fresh for up to two weeks.
  • For longer storage, wrap individual bars in parchment paper and place them in a freezer-safe container. They’ll last up to three months in the freezer. Just pull one out when you need it and let it thaw for a few minutes before enjoying.

These no-bake peanut butter oat bars aren’t just a snack—they’re a versatile, healthy option that fits right into your lifestyle. Make a batch today, and you’ll see why they’ve been a family favorite in my house for years!

peanut butter oat bars

Easy No-Bake Peanut Butter Oat Bars

Barbi Gardiner
These no-bake peanut butter oat bars are a quick, healthy, and customizable snack made with just a few pantry staples. Perfect for on-the-go or as a satisfying treat, they’re ready in minutes with no cooking required!
No ratings yet
Prep Time 10 minutes
Chilling Time 1 hour
Total Time 1 hour 10 minutes
Course Breakfast, Snack
Cuisine American
Servings 24 bars

Ingredients
  

Instructions
 

  • Combine peanut butter, honey, vanilla, sea salt, and oats in a stand mixer or large bowl. Stir until fully mixed. Fold in your add-ins.
  • Line a 9x13 bar pan or baking tray with parchment paper. Transfer the mixture to the tray, spreading it into an even layer using a spatula or buttered hands.
  • Refrigerate the tray for about an hour or until the mixture is firm.
  • Remove from the fridge and cut into desired sizes. Wrap bars individually in parchment paper if needed.
  • Place bars in an airtight container. Store in the fridge for up to 2 weeks or in the freezer for up to 3 months.

Notes

  • For a vegan version, replace honey with maple syrup or agave nectar.
  • Use gluten-free oats if needed.
  • Experiment with different add-ins to suit your taste!
    Enjoy these easy, delicious bars any time you need a quick and healthy snack!
Keyword granola bars, homemade granola bars, no-bake peanut butter oat bars, peanut butter oat bars
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