Peach Crisp Bars are my go-to when I want a jammy peach filling but still want something I can slice and stack. They’re basically a peach crisp in bar form, with a buttery oat crumb that holds up well.
I like how these taste like a simple summer dessert, not fussy, just cinnamon-y and peachy with a crumb topping that stays a little crisp at the edges. For me, the best part is that the middle turns soft and thick once it cools, so the bars actually cut clean.
These are especially good for picnics, potlucks, and cookie trays when you want something fruit-based. I also like them as a no-fork dessert alongside iced coffee or hot tea.
Why You’ll Love This Recipe
Real peach flavor: The filling cooks into a thick, jammy layer that tastes like peaches, not just sugar.
Buttery crumb topping: The oat crumble is rich and toasty, and it gives you that classic crisp-bar texture without being dry.
Easy to slice and serve: Once they’re cooled and chilled, these cut into neat squares that travel well.
No mixer needed: Everything comes together with a bowl, a whisk, and a spoon, which is my favorite kind of baking.
Flexible for the season: Fresh peaches are great, but frozen works too when that’s what you’ve got.
Ingredients You’ll Need
Crust and Crumble
- All-purpose flour: I use regular flour here for structure so the base doesn’t crumble when you pick up a bar. You can swap in some whole wheat if you like a heartier bite.
- Old fashioned rolled oats: These give the crumble that classic crisp texture. Quick oats work in a pinch, but the topping won’t be quite as nubby.
- Light brown sugar: Brown sugar makes the crust taste a little more caramel-y. Dark brown sugar works too if that’s what you have.
- Baking powder: Just a little helps the crust stay tender instead of turning dense.
- Fine salt: Don’t skip it. It keeps the crust from tasting flat and helps the peaches taste more peachy.
- Ground cinnamon: Cinnamon is subtle here, but it’s the right vibe with peaches and oats.
- Unsalted butter: Melted butter makes this easy and gives you a rich, crisp-bar style crumb. Let it cool slightly so it doesn’t melt the sugar too fast.
- Vanilla extract: A small amount goes a long way in the crust and makes the whole pan smell like a bakery.
Peach Filling
- Peaches: Ripe but firm peaches are best so they hold their shape and don’t turn watery. If you’re using frozen peaches, thaw them, drain well, and pat them dry.
- Granulated sugar: This sweetens the filling and helps draw out the peach juices so the cornstarch can thicken everything.
- Cornstarch: This is what makes the filling sliceable. If your peaches are extra juicy, don’t be tempted to cut it back.
- Lemon juice: A little acid keeps the filling bright and cuts through the butteriness of the crumble.
- Vanilla extract: Vanilla makes the filling taste more “dessert-y” without changing the peach flavor.
- Salt: Just a pinch helps the sweetness taste cleaner.
Recipe Instructions
- Preheat the oven: Heat the oven to 350°F. Line an 8×8-inch pan with parchment paper, leaving an overhang on two sides, and lightly grease the parchment.
- Mix the dry ingredients: In a medium bowl, whisk together the flour, oats, brown sugar, baking powder, salt, and cinnamon until well mixed.
- Add the butter: Stir in the melted (slightly cooled) butter and vanilla extract until you have moist crumbs and no big dry patches.
- Press the crust: Press about two thirds of the crumb mixture firmly into the prepared pan in an even layer. Use the bottom of a measuring cup or glass to pack it down.
- Mix the filling: In another bowl, toss the diced peaches with the granulated sugar, cornstarch, lemon juice, vanilla, and a pinch of salt until glossy and evenly coated.
- Add the filling: Spread the peach filling evenly over the crust, getting it into the corners and keeping the layer as even as you can.
- Add the crumble: Sprinkle the remaining crumb mixture evenly over the top, then lightly press it down so it adheres.
- Bake: Bake for about 40 to 50 minutes, until the topping is a deep golden brown and the filling is bubbling at the edges.
- Cool and chill: Cool completely in the pan at room temperature, then chill for 1 to 2 hours so the filling sets up for clean slices.
- Slice the bars: Lift the slab out using the parchment overhang, then cut into bars with a sharp knife.
Some of my tips!
This is the part that really makes a difference. If you only read one section, make it this one because this is where I share the little trick that helps the recipe turn out so well.
Recipe Tips & Tricks
Use ripe but firm peaches. Very soft peaches tend to break down and release more juice, which can make the filling looser. Firm-ripe peaches hold their shape and still taste sweet.
Drain frozen peaches well. Frozen peaches are convenient, but they carry a lot of extra moisture. Thaw them fully, drain, and pat dry so the bars don’t end up watery.
Press the bottom layer firmly. The crust needs a good press so it bakes into a solid base. If it’s loosely packed, it can crumble when you lift and slice.
Watch the color on top. I like these when the topping gets deep golden, not pale. If the top isn’t browned, the crumble can taste a little raw and sandy.
Chill before slicing. These really do cut better after a chill, even if they look set at room temperature. The filling thickens as it cools, and the bars hold together.
Make some touches!
There are plenty of easy ways to serve this depending on the occasion. Keep it simple, or add a few small touches to make it feel a little more special.
Serving Suggestions
- Ice cream: Serve a bar slightly warm with vanilla ice cream on the side. The cold ice cream and the buttery crumble are a good combo.
- Whipped cream: A spoonful of lightly sweetened whipped cream (or even the canned kind) is simple and classic here. I like adding a tiny pinch of cinnamon on top.
- Fresh fruit: If you want a lighter plate, add raspberries or blueberries on the side. The tart fruit is nice with the sweet peaches.
- Coffee or tea: These are great with iced coffee in the summer, but they’re just as good with hot tea in the afternoon. They’re sturdy enough to snack on without a fork.
Save it for later
This section covers how to store leftovers and what parts of the recipe you can prepare ahead of time.
Storage and Make Ahead
Store airtight at room temperature for up to 3 days. I usually keep them in a covered container and separate layers with parchment so the tops stay a little crisper.
If you prefer them firmer, store them in the fridge for up to 5 days. The cold helps the filling stay set, and they’re easy to slice straight from the fridge.
To make them ahead, bake and cool fully, then chill and slice when you’re ready to serve. They actually handle a day-ahead bake really well.
If you want them to last longer, freeze up to 2 months (whole slab or individual bars). Thaw in the fridge overnight or at room temperature until soft enough to bite.
A few quick answers
This section covers a few extra details that may help before you head to the recipe card.
Recipe FAQs
Can I use frozen peaches?
Yes. Thaw them completely, drain off the liquid, and pat them dry before mixing with the sugar and cornstarch. If you skip that, the filling can end up too runny.
How do I know when the bars are done baking?
Look for a deep golden brown topping and bubbling at the edges of the pan. If the top is still pale, give it a few more minutes so the crumble bakes through.
Why do my bars fall apart when I slice them?
The most common reason is slicing while they’re still warm. Let them cool completely, then chill for an hour or two so the filling sets and the crust firms up.
Can I add nuts to the crumble?
Definitely. Chopped pecans or almonds are great here, and I usually add them right into the crumb mixture. Keep the pieces fairly small so the bars still slice cleanly.
Can I swap in whole wheat flour?
Yes. You can swap up to half the flour for whole wheat flour for a slightly nuttier, heartier crust. I wouldn’t go all whole wheat unless you like a more rustic texture.
You might also like
Before you go, take a look at a few other recipes below the recipe card. They use similar ingredients in a different way and are worth saving too.
MORE DINNER RECIPES TO TRY
Peach Crisp Bars
INGREDIENTS
Crust and Crumble
- 1 1 2 cups all purpose flour
- 1 cup old fashioned rolled oats
- 3 4 cup light brown sugar packed
- 1 tsp baking powder
- 1 2 tsp fine salt
- 1 tsp ground cinnamon
- 3 4 cup unsalted butter melted and slightly cooled
- 1 tsp vanilla extract.
Peach Filling
- 4 cups peeled diced peaches about 5 to 6 medium
- 1 3 cup granulated sugar
- 2 tbsp cornstarch
- 1 tbsp lemon juice
- 1 tsp vanilla extract
- pinch of salt.
INSTRUCTIONS
Prep
- preheat oven to 350 F
- line an 8x8 inch pan with parchment leaving overhang and lightly grease.
Crust and Crumble
- whisk flour oats brown sugar baking powder salt and cinnamon
- stir in melted butter and vanilla until moist crumbs form
- press about two thirds of the mixture firmly into the pan in an even layer.
Filling
- toss peaches with sugar cornstarch lemon juice vanilla and salt until evenly coated and glossy.
Assemble and Bake
- spread filling evenly over the crust
- sprinkle remaining crumb mixture evenly over the top and lightly press
- bake until topping is deep golden and filling bubbles at the edges about 40 to 50 minutes.
Cool and Slice
- cool completely in the pan at room temperature then chill 1 to 2 hours for clean slices
- lift out by parchment and cut into bars.
