4 Ingredient Healthy No Bake Peanut Butter Cup Oat Bars: this vegan peanut butter oatmeal bars recipe is so easy to make & tastes like peanut butter cups! Chewy peanut butter oatmeal bars with a thick, chocolate topping. Vegan, Gluten-Free, Dairy-Free, Healthy.

What are your favorite snacks to bring with you on-the-go? Erik and I love walking all over the place, so we’re always searching/looking for ways to make healthy vegan treats that stay yummy without a fridge and are super portable.

I mean… unless you’ve got a teeny-tiny, like nearly microscopic mini-fridge/purse you can recommend? 😉 J/K!

I’ve noticed over many, many meal preps/snack preps for our excursions that no bake snacks truly fit the bill. They’re so easy to make, easy to customize with gluten free ingredients, and are seriously yummy.

Healthy No Bake Peanut Butter Cup Oatmeal Bars (Vegan)

One of our favorites? These vegan + gluten free chocolate peanut butter oatmeal bars! They’re made with just 4 ingredients, come together without an oven (wahooo!!) and are dairy-free, protein-rich, vegan and gluten free!

These healthy no bake peanut butter oat bars taste like peanut butter cups. Layer 1: a chewy, sweet peanut butter oat bar layer made with just 3 healthy ingredients. Layer 2: a thick ‘n rich vegan chocolate peanut butter topping. Result: the best chocolate peanut butter oatmeal bars that taste like Reese’s peanut butter cups!

Healthy Peanut Butter Oat Bars with just 4 Ingredients!

Peanut Butter

I love using unsalted, natural creamy peanut butter to make these healthy peanut butter oat bars! Since I make many of these recipes with my mom in mind, I’m vigilant to leave out any unnecessary sources of sodium, like salted peanut butter. You can try that if you like, just keep in mind that it’ll affect the flavor of these gluten free peanut butter oat bars. It’s the same PB that I use in my 3 Ingredient Keto Chocolate Peanut Butter Fat Bombs.

Gluten Free Oats

Make sure to use gluten free rolled oats aka old-fashioned oats to make these vegan peanut butter oatmeal bars. Quick oats, or 1-minute oats are much thinner and will yield a different result. For more tasty PB oatmeal recipe try my Healthy Peanut Butter Overnight Oats Recipe (Vegan, Gluten Free) and my 3 Ingredient No Bake Peanut Butter Oatmeal Cookie Cups.

Pure Maple Syrup

Pure maple syrup is one of my favorite ingredients to use in vegan gluten free baking. The flavor & sweetness of maple syrup is incredible! Plus, it makes these healthy peanut butter oat bars refined sugar-free (just make sure to use a vegan chocolate that’s refined sugar-free).

Vegan Chocolate Chips

There are a variety of dairy-free/vegan chocolate chips available. These vegan chocolate chips are allergy-friendly and melt very smoothly. Here’s another popular brand of allergy-friendly vegan chocolate chips. You might also try chopping up this paleo chocolate bar to ensure that these healthy peanut butter oat bars are not only gluten-free & healthy, but also refined sugar-free.

Can I Freeze these Vegan Peanut Butter Oatmeal Bars?

Yes! I actually have a batch of these vegan peanut butter oatmeal bars in my freezer as we speak. To Freeze: after chilling and slicing, carefully place chocolate peanut butter oat bars in a freezer-friendly container or bag. Freeze oat bars for up to 2 months. Remember to thaw the oatmeal bars before enjoying!

Recipes Like Chocolate Peanut Butter Oatmeal Bars

Here are my favorite recipes that are similar to these chocolate peanut butter oatmeal bars (all vegan, gluten-free, dairy-free):

4 Ingredient Easy Vegan Chocolate Peanut Butter Bars: these no bake peanut butter bars are easy to make & are the dessert version of this healthy no bake peanut butter oatmeal bars recipe!
4 Ingredient Chocolate Peanut Butter No Bake Energy Bites Recipe: these healthy energy bites are protein-rich, also taste like peanut butter cups & are super easy to make.
3 Ingredient No Bake Peanut Butter Oatmeal Cookies: sometimes, Erik and I like to shake things up and make no bake peanut butter oatmeal cookies instead of oatmeal bars!
3 Ingredient Peanut Butter No Bake Energy Bites Recipe: if you’re looking for healthy peanut butter oatmeal bars minus the oatmeal (and in bite form), try my super popular no bake peanut butter energy bites recipe.
Peanut Butter Chocolate Chip Oatmeal Breakfast Bars: a baked peanut butter oatmeal treat that still qualifies as breakfast!
Peanut Butter Coconut Oatmeal Cookies: one of my favorite gluten free combos: peanut butter + coconut!
4 Ingredient No Bake Chocolate Peanut Butter Oatmeal Cookies: for no bake fans: a chocolate peanut butter oatmeal cookie that’s similar to my healthy no bake peanut butter oat bars recipe. 🙂
3 Ingredient Peanut Butter Oatmeal Balls (No Bake): one of the easiest, tastiest no bake treats around. Perfect for saving snack time! 😉
Healthy Peanut Butter Oatmeal Cookies + Chocolate Peanut Butter Oatmeal Balls + Chocolate Peanut Butter Oat Bars + Small Batch No Bake Cookies

Best Tools for Gluten Free No Bake Peanut Butter Oat Bars

Click on the links below to see the tools & ingredients I used to make these healthy no bake chocolate peanut butter oat bars!

8-inch Baking Pan – I can’t even tell you how many times I’ve used this pan for gluten free baking. It’s awesome!
Vegan Chocolate Chips – a fantastic brand of vegan, gluten-free and soy-free chocolate chips.
Natural Unsalted Creamy Peanut Butter – my favorite brand of natural peanut butter, perfect for making healthy peanut butter oat bars. And yes, I do buy PB in bulk. 😉
My Favorite Knife – this knife is so sharp! Perfect for getting those super-straight cuts when slicing these vegan chocolate peanut butter oatmeal bars.
GF Rolled Oats – you can’t make gluten free peanut butter oatmeal bars without oats, and this is a great brand to use.
Maple Syrup – a vegan baking staple, I’ve always got a bottle (or 3) in my kitchen.

If you try my healthy peanut butter cup oat bars recipe, let me know in the comments below! It’s always so much fun sharing in these kitchen adventures with you. I can’t wait to hear what you think. ‘Til then…

Sending you all my love and maybe even a dove, xo Demeter ❤️

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Did you make this vegan peanut butter oat bars recipe? Take a pic & share it on Instagram with the hashtag #beamingbaker and tag @beamingbaker. I’d love to see it!