Peach Cinnamon Oatmeal Crumb Bars
There’s nothing quite like the smell of warm cinnamon wafting through your kitchen, especially when it’s paired with juicy peaches and buttery oatmeal crumble.
These Peach Cinnamon Oatmeal Crumb Bars are here to make your day just a little bit sweeter!
Whether you’re serving them as a breakfast treat or an afternoon snack, these bars strike the perfect balance between wholesome oats and sweet peach filling.
Plus, they’re super easy to whip up—because who doesn’t love a shortcut?
How to Make It
Note: This is an overview. See recipe card below this post for ingredient quantities and full instructions.
Step 1: Preheat and Prep
Start by preheating your oven to 350°F (175°C). Grab a square baking pan, line it with parchment paper, and give it a light spray of nonstick cooking spray. This will ensure your bars come out in one beautiful piece later. Trust me, lining that pan is worth every second!
Step 2: Make the Crumbly Base
In a mixing bowl, combine rolled oats, flour, brown sugar, cinnamon, and melted butter until you get a crumbly texture. Think of it as making cookie dough but without overmixing—you want those crumbs to stay chunky. Press two-thirds of this mixture into the bottom of your prepared pan to create the base layer.

Step 3: Whip Up the Peach Filling
Toss sliced fresh peaches with a sprinkle of sugar, cornstarch, lemon juice, and more cinnamon. The cornstarch helps thicken the juices while the lemon adds brightness to balance the sweetness. Spread this luscious peach mixture evenly over the crust. Imagine how golden those peaches will look once baked!
Step 4: Add the Topping
Sprinkle the remaining oat mixture on top of the peach filling, creating a rustic crumb topping. Gently press it down so it sticks during baking. Picture those golden-brown crumbs crisping up perfectly in the oven—it’s practically dessert magic.
Step 5: Bake Until Golden
Pop the pan into the oven and bake for about 35-40 minutes, or until the edges are bubbly and the topping turns a gorgeous golden brown. Let it cool completely before slicing into neat squares. Patience pays off here; cooling ensures clean cuts!
Pro Tips
- Use ripe but firm peaches : They hold their shape better during baking.
- Double the batch : These bars freeze beautifully, so why not stash some away for later?
- Swap fruits if needed : Apples or berries work wonderfully in place of peaches.
- Toast your oats first : For extra flavor, toast the oats briefly before mixing them into the crust.
- Don’t skip the parchment paper : It makes removing the bars from the pan a breeze.
Storage
- Store leftovers in an airtight container at room temperature for up to 3 days.
- Refrigerate for up to 5 days if you live in a warm climate.
- Freeze individual portions wrapped in plastic wrap and stored in a freezer-safe bag for up to 2 months.


Peach Cinnamon Oatmeal Crumb Bars
Description
These Peach Cinnamon Oatmeal Crumb Bars are soft, chewy, and bursting with fruity goodness. Perfect for breakfast, brunch, or dessert!
Ingredients
For the crust and topping:
For the peach filling:
Instructions
- Preheat your oven to 350°F (175°C). Line an 8x8-inch square baking pan with parchment paper and lightly grease it.
- In a large bowl, mix together the rolled oats, flour, brown sugar, cinnamon, melted butter, and salt until crumbly. Reserve one-third of the mixture for the topping.
- Press the remaining two-thirds of the mixture firmly into the bottom of the prepared pan to form the crust.
- In another bowl, toss the sliced peaches with granulated sugar, cornstarch, lemon juice, and cinnamon. Spread this mixture evenly over the crust.
- Sprinkle the reserved oat mixture over the peach filling, gently pressing it down.
- Bake for 35-40 minutes, or until the edges are bubbly and the topping is golden brown.
- Allow the bars to cool completely in the pan before slicing into squares.
Nutrition Facts
Servings 8
- Amount Per Serving
- Calories 220kcal
- % Daily Value *
- Total Fat 9g14%
- Total Carbohydrate 32g11%
- Dietary Fiber 2g8%
- Sugars 18g
- Protein 3g6%
* Percent Daily Values are based on a 2,000 calorie diet. Your daily value may be higher or lower depending on your calorie needs.
Note
- Use gluten-free oats and flour for a gluten-free version.
- Fresh peaches are ideal, but canned peaches (drained) can be used in a pinch.
- If your peaches aren’t very sweet, increase the sugar slightly.
These values are approximate and may vary depending on the specific ingredients and brands used. Always check your ingredient labels for precise nutrition details.