Should you’re in search of a simple, chewy, and oh-so-delicious snack, these Peanut Butter Oatmeal Crumble Bars are the reply! Filled with the nutty goodness of peanut butter, hearty rolled oats, and a golden crumble topping, they’re the proper deal with!

Whether or not you want a fast lunchbox filler, an afternoon pick-me-up, or a post-dinner snack together with your cuppa, these crumble bars hit the spot each time. Plus, they’re made with easy pantry elements, so you possibly can whip up a batch each time the craving strikes!
On the lookout for extra peanut butter recipes?
Attempt my peanut butter brownies (so decadent!), no bake peanut butter slice, 3 ingredient microwave peanut butter fudge or my Reese’s peanut butter cookies!
Soar to:
Why You’ll Love This Recipe
✔ Tremendous Simple – Simply combine, press, bake, and luxuriate in—no fancy methods required!
✔ Nutritious & Filling – Made with rolled oats, peanut butter, and pantry staples for a satisfying, energy-boosting snack the entire household will love.
✔ Nice for Lunchboxes – These bars are kid-friendly, school-approved (simply swap for a nut-free butter if wanted), and don’t want refrigeration.
✔ Customisable – Add chocolate chips, nuts, or dried fruit to make them your personal.
✔ Comfortable & Chewy Texture – A deliciously crumbly base, a easy peanut butter layer, and a golden oat topping!
What You Want
These oatmeal peanut butter bars come collectively so nicely with simply a handful of easy elements:
Be aware: Scroll to the recipe card on the backside for the elements portions and full detailed technique.
- Plain Flour – Also called all goal flour.
- Rolled Oats – Provides chewiness and texture (additionally known as old style oats).
- Salt – Only a pinch balances the sweetness.
- Bicarbonate of Soda (Baking Soda) – Helps with texture and lightness.
- Uncooked Sugar & Gentle Brown Sugar – The proper mixture for a golden, caramel-like flavour.
- Butter – Melted butter binds the crumble combination and provides richness.
- Vanilla Extract – Enhances the flavour.
- Peanut Butter – The star ingredient! Use easy and creamy peanut butter or crunchy peanut butter, relying in your particular person choice.
Tools Required
- Giant bowl and medium bowl – For combining elements.
- Measuring cups and spoons – To make sure correct measurements.
- 20cm sq. cake tin – The proper dimension for these bars.
- Baking paper/parchment paper – To line the tin and make eradicating the bars simple.
- Whisk, spoon and spatula – For mixing elements, and to unfold the peanut butter evenly.
- Oven – Preheated to 160°C (fan-forced).
- Sharp serrated knife – For reducing the bars cleanly after they’ve cooled.
Step-By-Step Directions
Let’s make peanut butter oat bars!
Be aware: Scroll to the recipe card on the backside for the elements portions and full detailed technique.
Step 1: Preheat & Put together The Tin
Preheat your oven to 160°C (fan-forced). Line a 20cm sq. cake tin with baking paper, ensuring to depart some overhanging edges for straightforward elimination later.
Step 2: Mix The Dry Substances
In a big mixing bowl, whisk collectively the plain flour, rolled oats, salt, and bi-carbonate of soda. Stir within the uncooked sugar and brown sugar, guaranteeing all the things is nicely mixed.
Step 3: Combine In The Moist Substances
Pour the melted butter and vanilla extract into the oat combination, stirring till all the things is evenly coated and comes collectively right into a crumbly texture.
Step 4: Bake The Base
Take simply over half of the crumble combination and press it firmly into the bottom of your ready tin, smoothing it out evenly with the again of a spoon.
Bake for 10-Quarter-hour, or till frivolously golden. Take away from the oven and let it cool barely, however maintain the oven on.
Step 5: Unfold The Peanut Butter
As soon as the bottom has cooled slightly, unfold a layer of ½ to ¾ cup of peanut butter evenly throughout the floor.
Use ½ cup for a thinner layer or go for ¾ cup when you love that additional nutty flavour.
Step 6: Add Crumble Topping & Bake Once more
Sprinkle the remaining crumble combination over the peanut butter, ensuring to cowl it evenly.
Return to the oven and bake for 20-25 minutes, or till the topping turns a beautiful golden brown color.
Step 7: Cool, Refrigerate & Slice
As soon as baked, let the slice cool fully. For greatest outcomes, cowl and refrigerate for at the very least 2 hours (in a single day is even higher). This helps the bars set correctly for clear slicing. Use a sharp serrated knife to chop into squares earlier than serving.
Ideas For The Finest Peanut Butter Oatmeal Crumble Bars
✔ Permit the bottom to chill barely earlier than including peanut butter. This makes it a lot simpler to unfold.
✔ Press the bottom firmly. This helps the slice maintain collectively.
✔ Refrigerate earlier than slicing. The bars will set correctly and slice cleanly.
✔ If the crumble is browning too shortly, cowl with foil and proceed baking.
✔ Get pleasure from heat or chilly! Serve with ice cream, custard, or cream for a dessert-style deal with.
Variations
This oatmeal bar recipe is so versatile! Here is just a few of my fave variations:
🔹 Nut-Free Model: Swap peanut butter for sunflower seed butter or tahini for a school-friendly various.
🔹 Chocolate Peanut Butter Bars: Stir via ½ cup of standard chocolate chips or chunks of chopped darkish chocolate into the crumble combination.
🔹 Coconut & Peanut Butter Bars: Add ½ cup of shredded coconut to the bottom for additional chewiness.
🔹 Fruit & Nut Bars: For a more healthy model, combine in dried cranberries, chia seeds, sultanas, flax seed, or chopped nuts for added texture and flavour.
Storage & Freezing
- Fridge – For the most effective texture, retailer in an hermetic container within the fridge for as much as 1 week. Storing the slice at room temperature will make it lose it is crunchy crumble on prime.
- Freezer – Freeze in an hermetic container for as much as 3 months. Permit to defrost within the fridge earlier than serving.
FAQS
Whereas you should use fast cooking oats if thats what you will have available, rolled oats will present a chewier texture.
Sure! Simply swap the plain flour for gluten-free flour and guarantee your oats are licensed gluten-free.
Completely! Simply remember that pure peanut butter is runnier and fewer candy, so it’s possible you’ll want to regulate the sugar barely.
These peanut butter oatmeal crumble bars have a tender, chewy base, a easy peanut butter layer, and a golden, crumbly topping—completely scrumptious!
Extra Oat Recipes You’ll Love
Should you love these peanut butter oatmeal crumble bars, attempt these subsequent:
These Peanut Butter Oatmeal Crumble Bars are the proper deal with—healthful, satisfying, and completely scrumptious! Bake a batch as we speak and luxuriate in them as a snack, brekkie on the go, or a candy little deal with together with your cuppa.
Let me know when you give them a attempt – I’d love to listen to what you assume!
Get pleasure from! xx
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Peanut Butter Oatmeal Bars
The proper recipe for peanut butter lovers! Crunchy oat base and topping crammed with candy and creamy peanut butter!
Servings: 20 serves
Energy: 151kcal
Stop your display from going darkish
Directions
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Preheat oven to 160 levels celsius (fan-forced).Grease and line a 20cm sq. cake tin with baking paper, permitting the sides to overhang.
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In a big bowl, whisk collectively the plain flour, rolled oats, salt and bi-carbonate of soda. Stir within the uncooked sugar and brown sugar and blend till easy.
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Add the vanilla extract and melted butter to the dry elements. Stir combination till nicely mixed.If utilizing a Thermomix: Soften the butter and vanilla extract for 3 minutes, Velocity 2, 80 levels. Add the plain flour, rolled oats, salt, bi-carbonate of soda, brown sugar and uncooked sugar. Combine for 20 seconds on Reverse, Velocity 2. Scrape down the perimeters. Combine for an additional 20 seconds on Reverse, Velocity 2.
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Press simply over half of the crumble combination into the bottom of the ready tin and use the again of a spoon to easy the combination into a fair layer. Bake within the preheated oven for Quarter-hour, till golden.Take away from oven and put aside to chill barely (depart the oven turned on).
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Unfold the peanut butter excessive of the cooked base. Use ½ cup peanut butter for a skinny layer or ¾ cup for a barely thicker layer (the extra the higher in my view!)
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Sprinkle the remaining crumble combination excessive of the peanut butter.
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Bake within the oven for 20 – 25 minutes or till frivolously golden.Take away from oven and permit to chill.
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Cowl and refrigerate for at the very least 2 hours (ideally in a single day) then take it out and minimize into squares.
Notes
VARIATIONS:
- Swap the peanut butter for sunflower seed butter or tahini for a nut free possibility.
- Add some chocolate chips or chunks of chopped darkish chocolate to the crumble topping combination.
- Add some shredded coconut, dried cranberries, sultanas or chopped nuts to the crumble topping earlier than baking.
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OTHER RECIPE TIPS:
- All ovens are totally different – The slice is prepared when the crumble is golden. I specify levels celsius (fan-forced) for my recipes. Should you’re utilizing a traditional oven, improve the temperature by 10-20 levels celsius.
- Should you discover that your crumble is over-browning, merely add a sheet of foil loosely excessive and proceed baking.
- Permit the bottom to chill barely earlier than including the peanut butter (it will make it simpler to unfold).Â
- Refrigerate earlier than slicing, then minimize the slice utilizing a sharp serrated knife.
- This crumble slice is scrumptious served cool or warmed up with a scoop of ice-cream, custard or cream.
- Retailer the slice in an hermetic container within the fridge for as much as one week.
- Freeze the slice in an hermetic container for as much as 3 months. Permit to defrost within the fridge earlier than consuming.
Vitamin
Energy: 151kcal | Carbohydrates: 20g | Protein: 2g | Fats: 7g | Saturated Fats: 4g | Polyunsaturated Fats: 0.4g | Monounsaturated Fats: 2g | Trans Fats: 0.3g | Ldl cholesterol: 18mg | Sodium: 142mg | Potassium: 39mg | Fiber: 1g | Sugar: 9g | Vitamin A: 212IU | Calcium: 10mg | Iron: 1mg