Oatmeal Peanut Butter Chocolate Chip Bars
If you’re searching for a quick and satisfying treat that combines the wholesome goodness of oats with the rich creaminess of peanut butter, look no further! These Oatmeal Peanut Butter Chocolate Chip Bars are the perfect snack to keep you energized throughout the day. They’re easy to make, delightful to eat, and can be enjoyed by everyone in the family. Whether you’re heading out for a hike or simply need a midday pick-me-up, these bars will hit the spot!
What Sets This Recipe Apart

What truly makes these Oatmeal Peanut Butter Chocolate Chip Bars special is their perfect balance of flavors and textures. The hearty oats provide a chewy base, while the creamy peanut butter adds richness. Semi-sweet chocolate chips melt in your mouth, and a hint of cinnamon brings everything together beautifully. Plus, they’re versatile—feel free to add in your favorite nuts or seeds for an extra crunch!
What to Buy
Before you get started, make sure you have the following ingredients on hand:
- 2 cups milk (you can use soy, almond, or cow’s milk)
- 1 cup old-fashioned whole-rolled oats (not quick-cook or instant)
- 1 large egg
- 1 cup light brown sugar (packed)
- heaping 1/4 cup creamy peanut butter
- 1 teaspoon cinnamon
- 1 cup raisins (omit if you don’t like them)
- 1 teaspoon vanilla extract
- 1 cup semi-sweet chocolate chips
Make sure to check your pantry for these staples before you start baking!
Before You Start: Equipment
Gather the following kitchen tools to make the process smoother:
- Mixing bowls – for combining ingredients.
- Whisk – to mix wet ingredients thoroughly.
- Spatula – for folding in the oats and chocolate chips.
- 9×13 inch baking pan – to bake the bars in.
- Parchment paper – for easy removal of the bars.
- Oven – to bake your delicious creation!
Stepwise Method: Oatmeal Peanut Butter Chocolate Chip Bars

Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C) to ensure it’s hot and ready for baking.
Step 2: Prepare the Baking Pan
Line a 9×13 inch baking pan with parchment paper, allowing some overhang for easy removal later.
Step 3: Mix the Wet Ingredients
In a large mixing bowl, whisk together the milk, egg, light brown sugar, creamy peanut butter, cinnamon, and vanilla extract until well combined.
Step 4: Incorporate the Dry Ingredients
Stir in the old-fashioned oats and mix until they are fully coated with the wet mixture.
Step 5: Add the Raisins and Chocolate Chips
Gently fold in the raisins (if using) and semi-sweet chocolate chips, ensuring an even distribution throughout the mixture.
Step 6: Transfer to Baking Pan
Pour the mixture into the prepared baking pan and spread it evenly with a spatula.
Step 7: Bake
Bake for 25-30 minutes, or until the edges are golden brown and a toothpick inserted in the center comes out clean.
Step 8: Cool and Cut
Allow the bars to cool in the pan for about 10 minutes before lifting them out using the parchment paper. Let them cool completely on a wire rack before cutting into squares.
Vegan & Vegetarian Swaps

For those looking for vegan or vegetarian alternatives, consider these swaps:
- Replace the large egg with a flax egg (1 tablespoon ground flaxseed mixed with 2.5 tablespoons water).
- Use maple syrup or agave nectar instead of brown sugar for a vegan-friendly sweetener.
- Opt for almond or oat milk instead of cow’s milk.
- Ensure your chocolate chips are dairy-free.
Pitfalls & How to Prevent Them
To ensure your Oatmeal Peanut Butter Chocolate Chip Bars turn out perfectly, keep these tips in mind:
- Don’t substitute quick-cook or instant oats; they won’t provide the right texture.
- Make sure your peanut butter is creamy for a smooth mixture.
- Measure your ingredients accurately, particularly the brown sugar, as it should be packed.
- Allow the bars to cool completely before cutting; this helps them hold together better.
Prep Ahead & Store
These bars are perfect for meal prep! Here’s how to make the most of them:
Store your Oatmeal Peanut Butter Chocolate Chip Bars in an airtight container at room temperature for up to 3 days. For longer storage, place them in the refrigerator, where they can last for up to a week. You can also freeze them for up to 3 months. Just wrap each bar individually in plastic wrap, then place them in a freezer-safe bag. When you’re ready to enjoy, simply thaw them at room temperature or pop them in the microwave for a few seconds!
Reader Q&A
Can I use quick oats instead of old-fashioned oats?
It’s best to stick with old-fashioned oats for this recipe, as quick oats will result in a different texture and may make the bars too mushy.
Can I omit the raisins?
Absolutely! If you’re not a fan of raisins, feel free to leave them out. The bars will still be delicious without them.
What can I substitute for peanut butter?
If you need a nut-free option, sun butter or soy nut butter make excellent substitutes for peanut butter.
How do I know when the bars are done baking?
The bars are done when the edges are golden brown and a toothpick inserted into the center comes out clean or with a few moist crumbs.
The Last Word
These Oatmeal Peanut Butter Chocolate Chip Bars are not just a tasty treat; they’re a wholesome snack that can be enjoyed by all. With their chewy texture and rich flavors, they are sure to become a staple in your kitchen. Plus, they’re incredibly adaptable, allowing you to make them your own with various add-ins or substitutions.
So, whether you’re gearing up for a busy week ahead or simply want something sweet to indulge in, these bars are your answer. They’re easy to make and even easier to enjoy!
Now it’s time to roll up your sleeves and get baking! You’ll be delighted with the results and wonder how you ever lived without this recipe in your collection. Happy baking!

Oatmeal Peanut Butter Chocolate Chip Bars
Ingredients
Equipment
Method
- Preheat your oven to 350°F (175°C).
- Line a 9x13 inch baking pan with parchment paper.
- In a large mixing bowl, whisk together the milk, egg, light brown sugar, creamy peanut butter, cinnamon, and vanilla extract until well combined.
- Stir in the old-fashioned oats and mix until fully coated.
- Gently fold in the raisins and semi-sweet chocolate chips.
- Pour the mixture into the prepared baking pan and spread it evenly.
- Bake for 25-30 minutes, or until the edges are golden brown.
- Allow the bars to cool in the pan for about 10 minutes, then cool completely on a wire rack before cutting into squares.
Notes
- Store in an airtight container at room temperature for up to 3 days.
- Refrigerate for up to a week or freeze for up to 3 months.
- Allow bars to cool completely before cutting for better texture.
