Fresh peaches baked between a layer of oat crust and deliciously sweet crumble topping. These bars are the perfect summer treat to enjoy on their own or warmed with a scoop of vanilla ice cream on top!

Peach Crumble Bars stacked on a turquoise board with a peach in the background

Peach season is one of my favorite things about summer. A fresh juicy peach is such a treat! They are perfect for baking, grilling, or even tossing into a salad or salsa to serve with dinner. I also love baking with peaches and these Peach Crumble Bars did not disappoint!

These bars are the ultimate fresh summer dessert! I added oats to both the crust and crumble topping that add a nice chewy texture to the bars. Each layer is super simple and quick to mix up. These are delicious just on their own, but if you want an even more decadent treat, enjoy them warm with a scoop o vanilla ice cream on top!

Sliced Peach Crumble Bars on parchment paper with a peach and floral napkin in the background

Recipe Tips and Suggestions:

  • Use ripe, but not too soft, peaches.
  • If the peaches are very juicy, you may need to add a little more cornstarch to the filling.
  • Don’t overbake the bars. They should be golden brown, but not too dark.
  • Let the bars cool completely before cutting into them. This will help them hold their shape. I let these cool for about 2 hours before slicing.
  • If you want to make these when peaches are not in season, you can used drained canned peaches. I do not recommend using frozen peaches as it can cause the bars to be too watery.


  • Add other fruits to the filling, such as blueberries, strawberries, or raspberries.
  • Add nuts to the crumble topping, such as almonds, walnuts, or pecans for an added crunch!
  • Add 1/2 teaspoon of almond extract to the peach filling for a more flavorful twist.
  • For an extra decadent treat, enjoy these warmed with a drizzle of caramel sauce and a scoop of vanilla ice cream on top!

Side view photo of peach crumble bars on parchment paper

Peach Crumble Bars stacked on a turquoise board with a peach in the background
Yield: about 18 bars

Peach Crumble Bars

Prep Time 20 minutes
Cook Time 35 minutes
Additional Time 2 hours
Total Time 2 hours 55 minutes

Peach Crumble Bars - Fresh peach filling layered between a delicous oat crust and topped with a delicious crumble topping! The perfect summer treat!


For the crust:

  • 3/4 cup flour
  • 3/4 cup old fashioned oats
  • 1/2 cup granulated sugar
  • 1/2 teaspoon ground cinnamon
  • 1/4 teaspoon salt
  • 1/2 cup unsalted butter, melted

For the peach filling:

  • 2 cups peaches diced
  • 2 tablespoons granulated sugar
  • 1 tablespoon fresh lemon juice
  • 3 teaspoons cornstarch

For the crumble topping:

  • 1/3 cup all-purpose flour
  • 1/4 cup old fashioned oats
  • 1 tablespoon granulated sugar
  • 2 tablespoons light brown sugar
  • 1/2 teaspoon ground cinnamon
  • 1/4 cup butter, melted


  1. Preheat oven to 350 degrees F (177 C). Prepare the crust. In a mixing bowl, add the flour, oats, sugar, cinnamon, and salt. Pour in the butter and stir until well-combined.
  2. Line an 8x8 baking dish with parchment paper. Transfer the crust and press down into an even layer in the dish. Set aside.
  3. Prepare the peach filling. Toss the diced peaches in sugar, lemon juice, and cornstarch in a bowl. Add the filling on top of the crust and set aside once more.
  4. Prepare the crumble topping. In a bowl, whisk together the flour, oats, sugars, and cinnamon. Pour in the melted butter and mix until its well-mixed with the dry ingredients. Mixture should loosely hold together, but have a crumbly texture. Use your hands to crumble the mixture on top of the peach filling as evenly as possible.
  5. Bake the bars for 30-35 minutes or until the peaches are bubbly and the crumble topping is lightly golden. Remove from the oven and let cool for 1 hour, cover and chill for 1-2 hours more in the fridge before slicing.

Nutrition Information:



Serving Size:

1 bar (out of 18)

Amount Per Serving: Calories: 155Total Fat: 8gSaturated Fat: 5gTrans Fat: 0gUnsaturated Fat: 3gCholesterol: 20mgSodium: 51mgCarbohydrates: 20gFiber: 1gSugar: 10gProtein: 2g

Peach Crumble Bars

Looking for more peach recipe ideas? Check these out:
Raspberry Peach Crisp
Peach Bellinis
Cherry Peach Galette
Grilled Peaches with Vanilla Bean Whipped Cream and Raspberry Coulis