Baked peanut butter oatmeal bars are a delicious treat!

Oatmeal bars are so good as a snack, but also double as a quick breakfast oat bar on the go!

pile of Peanut Butter Oatmeal Bars

Why We Love These

  • These come together easily and prep time is super fast.
  • Peanut butter bars use simple ingredients you likely have on hand.
  • They can be baked ahead of time and frozen for snacks or treats.
  • Use either wheat flour or all purpose flour.
  • They come out nice and moist with lots of peanut butter flavor.

ingredients to make Peanut Butter Oatmeal Bars

Ingredients

One of the things we like about this recipe is that the ingredients are so mix-and-match!

FLOUR Switch out the whole wheat flour for regular all purpose if it’s what you have on hand.

PEANUT BUTTER Creamy or chunky peanut butter will work.

SWEETENER Brown sugar gives these bars a rich flavor.

MILK Use regular milk or go for a non-dairy alternative for equally delicious results.

How to Make Oatmeal Bars

Homemade oatmeal bars are so simple to make, why not do a double batch and freeze half? They come together in 1, 2, 3:

  1. Mix oats, peanut butter, & brown sugar with a hand mixer. Add milk and vanilla.

ingredients in a bowl and mixed to make Peanut Butter Oatmeal Bars

  1. Whisk dry ingredients together and fold into the oat mixture. Fold in chocolate chips.

process of adding ingredients to bowl to make Peanut Butter Oatmeal Bars

  1. Press mixture into the pan & bake. Cool before cutting into squares.

raw and baked oatmeal bars

Tips for the Best Homemade Oatmeal Bars

  • Try toasting the rolled oats on a baking sheet so they stay extra crunchy and firm when used in the rest of the recipe.
  • Line the pan with parchment paper to make the bars easy to lift out and cut.
  • Keep bars in an airtight container at room temperature for about 4 days. Ensure they’re cooled completely before storing.
  • Freeze peanut butter oatmeal bars between sheets of parchment paper in zippered bags with the date labeled on them. They should keep about 8 weeks in the freezer. Let them come to room temperature and serve.

More Oats We Love

Did you make these Peanut Butter Oatmeal Bars? Be sure to leave a rating and a comment below! 

pile of Peanut Butter Oatmeal Bars with gooey chocolate chips
4.91 from 99 votes↑ Click stars to rate now!
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Peanut Butter Oatmeal Bars

These homemade oatmeal bars are filling, flavorful, & full of chocolate chips!
Prep Time 10 minutes
Cook Time 25 minutes
Total Time 35 minutes
Servings 9 bars
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Ingredients  

  • 1 cup rolled oats
  • ¾ cup creamy peanut butter
  • ½ cup brown sugar
  • 1 cup whole wheat flour or all purpose flour
  • 1 teaspoon baking soda
  • ¼ teaspoon salt
  • ½ cup milk
  • 1 teaspoon vanilla
  • cup chocolate chips

Instructions 

  • Preheat oven to 350°F. Line an 8x8 pan with parchment paper.
  • Mix the rolled oats, peanut butter, and brown sugar in a mixer on high until combined.
  • Add the milk and vanilla and mix until combined.
  • Combine the flour, baking soda, and salt in a small bowl and add to the mixture.
  • Fold in the chocolate chips.
  • Press mixture into the lined pan and bake for 18-20 minutes.

Notes

  • Toasting the rolled oats on a baking sheet will add extra flavor.
  • Chocolate chips can be swapped out for chopped nuts or dried fruit.
  • Line the pan with parchment paper to make the bars easy to lift out and cut.
  • Keep bars in an airtight container at room temperature for about 4 days. Ensure they're cooled completely before storing.
  • Freeze peanut butter oatmeal bars between sheets of parchment paper in zippered bags with the date labeled on them. They should keep about 8 weeks in the freezer. Let them come to room temperature and serve.
4.91 from 99 votes

Nutrition Information

Calories: 293 | Carbohydrates: 37g | Protein: 9g | Fat: 13g | Saturated Fat: 3g | Trans Fat: 1g | Cholesterol: 2mg | Sodium: 299mg | Potassium: 257mg | Fiber: 4g | Sugar: 19g | Vitamin A: 42IU | Vitamin C: 1mg | Calcium: 53mg | Iron: 1mg

Nutrition information provided is an estimate and will vary based on cooking methods and brands of ingredients used.

Course Breakfast, Dessert, Snack
Cuisine American
pile of Peanut Butter Oatmeal Bars with writing
squares of Peanut Butter Oatmeal Bars with a title
pile of Peanut Butter Oatmeal Bars with a title
Peanut Butter Oatmeal Bars cut into squares with a title

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About the author

Holly is a wine and cheese lover, recipe creator, shopping enthusiast and self appointed foodie. Her greatest passion is creating in the kitchen and making deliciously comforting recipes for the everyday home cook!
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Comments

  1. Is it possible to use almond butter instead of the peanut one?

    I’m sure it will be an amazing snack. You’re a staple in my house now! I use your recipes a couple of time every week!5 stars

    1. I haven’t tried this recipe with almond butter, but other readers have with great results.