Easy Peach Crumb Bars

Peach Crumb Bars are buttery, crumbly, and packed with sweet, juicy peaches that cook down into a jammy filling. The same simple dough does double duty as the press-in crust and the crumb topping, so every bite is rich, fruity, and exactly the right kind of messy.

They taste like a cross between peach pie and a buttery shortbread cookie, but they come together in a single 8×8 pan with no pie crust to roll. For more summer fruit bars with that same buttery crumble, try my strawberry rhubarb crumb bars or my blueberry crumb bars.

Why You'll Love This Recipe

• One dough, two jobs: The same buttery mixture presses into the base and crumbles over the top, so there's no separate topping to mix. It's the same shortcut that makes my apple pie crumb bars so easy.
• No mixer, no cutting in cold butter: The dough comes together with melted butter and a spoon. Just stir and press.
• A real, jammy filling: Cooking the peaches with a little cornstarch slurry first means the filling sets up glossy and sliceable instead of watery. No soggy bottoms here.
• Peach pie flavor, way less work: You get all the cozy, cinnamon-kissed peach flavor of a pie without rolling out a single crust. If you love that idea, my brownie crumb bars use the same press-and-bake trick with fudge instead of fruit.
• Frozen-fruit friendly: No need to wait for perfect fresh peaches. Frozen slices go straight into the saucepan, which makes this a make-anytime bar. They travel well, too — pair them with my pumpkin banana bread muffins for a potluck spread.

For the crust and crumble:

• All-purpose flour: The structure for both the base and the topping.
• Granulated sugar: Sweetens the dough and helps the edges crisp as they bake.
• Unsalted butter, melted: Melted butter makes a soft, easy-to-stir dough that bakes into a sturdy base and craggy crumbs — no cutting in cold butter required.
• Salt: Balances the sweetness and sharpens the peach flavor.
• Vanilla extract: Rounds out the buttery dough.

For the peach filling:

• Salt + vanilla extract: Small amounts that make the peach flavor taste fuller.
• Frozen sliced peaches: No need to thaw — they go straight into the saucepan. Fresh works too.
• Granulated sugar: Keep it modest so the filling stays jammy, not candy-sweet.
• Lemon juice: Brightens the peaches and keeps the filling from tasting flat.
• Cornstarch + water: Whisked into a slurry, this is what thickens the juices into a sliceable filling.
• Cinnamon (optional): Cozy and warm — leave it out for a purely peachy bar.

Easy Substitutions & Variations

• Frozen or fresh peaches: Either works. If using fresh, peel and slice before cooking. I used frozen.
• Gluten-free: Use a 1:1 gluten-free baking flour blend. The texture may be slightly softer, but still delicious.
• Dairy-free: Swap in melted dairy-free butter for the crust and topping. I like Country Crock's plant butter.
• Cornstarch swap: Tapioca starch or arrowroot powder work in the filling.
• Peach raspberry bars: Swap some of the peaches for raspberries.
• Peach almond bars: Add ½ teaspoon almond extract to the dough.
• Glazed bars: Drizzle a simple vanilla glaze over the cooled bars.
• Extra-cinnamon crumb: Add a teaspoon of cinnamon to the dough for a snickerdoodle vibe.

Expert Tips

1. Press the base firmly. Since this dough is held together by melted butter, packing it down evenly is what gives you a solid base that slices cleanly instead of crumbling apart.
2. Don't skip the par-bake. Baking the crust for 15 minutes before the filling goes on sets the base so it stays sturdy under the juicy peaches.
3. Chop large peach slices. If your frozen peaches come in big slices, give them a rough chop so they layer evenly and don't weigh down the crust.
4. Cook the filling until it thickens. The cornstarch slurry needs a minute or two of cooking to do its job — that's the difference between a jammy, sliceable bar and a soggy one.
5. Cool completely before slicing. This is the hardest tip to follow and the most important. The filling needs time to set, and the crumb topping firms up as it cools. A chill in the fridge gives you clean, bakery-neat squares.

Most fruit crumb bars treat the filling as an afterthought — raw fruit tossed with sugar and hoped to set in the oven. This one cooks the peaches into a proper jammy filling first, so it slices clean and tastes concentrated and glossy instead of watery. It's the same filling logic I rely on in my strawberry rhubarb galette, where cooking down the fruit is what keeps the whole thing from going soggy.

The other thing doing a lot of work here is the single melted-butter dough. One easy, stir-together mixture becomes both the sturdy par-baked base and the crumbly topping, so you get crisp edges, a tender middle, and that signature crumb finish without a mixer or two separate components. If you like that one-bowl approach, my fresh lemon crumb bars use a similar method with a bright citrus filling.

Peach Crumb Bars FAQs

Peach Crumb Bars Troubleshooting Guide

Store leftover bars in an airtight container at room temperature for up to 2 days, or refrigerate for up to 5 days.

You can also freeze them for up to 2 months — wrap tightly, then thaw in the refrigerator before bringing to room temperature (this minimizes condensation), or warm slightly before serving.

Other Crumb Bare Recipes to Try