Peach Raspberry Crumble Bars

Ingredients

For the Crumble Base and Topping

• 1 3/4 cups all-purpose flour
• 1 cup old-fashioned rolled oats
• 3/4 cup packed light brown sugar
• 1/2 teaspoon baking powder
• 1/2 teaspoon ground cinnamon
• 1/2 teaspoon fine salt
• 3/4 cup unsalted butter, melted and cooled

For the Fruit Filling

• 3 cups peeled diced peaches
• 1 1/2 cups raspberries
• 1/3 cup granulated sugar
• 2 tablespoons cornstarch
• 1 tablespoon lemon juice
• 1 teaspoon vanilla extract

Substitutions

• Replace raspberries with blackberries or blueberries, keeping the total fruit volume the same.
• Use nectarines instead of peaches without peeling them if the skins are tender.
• Use a cup-for-cup gluten-free flour blend and certified gluten-free oats.

Instructions

Step 2: Mix the crumble

Whisk flour, oats, brown sugar, baking powder, cinnamon, and salt. Stir in the melted butter until large and small crumbs form.

Step 4: Mix the filling

Toss peaches, raspberries, sugar, cornstarch, lemon juice, and vanilla until the fruit is evenly coated and no dry cornstarch remains.

Step 5: Assemble and bake

Spread the fruit over the base, leaving excess liquid in the bowl if the peaches are very juicy. Scatter the remaining crumble in clumps. Bake 38 to 42 minutes, until golden and bubbling at the center.

Step 6: Cool and cut

Cool completely in the pan for at least 1 hour. Lift out with parchment and cut into 12 bars with a clean sharp knife.

How to Store Leftovers

• Store cooled bars in an airtight container at room temperature for 1 day or refrigerate for up to 5 days.
• Place parchment between layers to protect the crumble.
• Bring chilled bars to room temperature for 15 minutes before serving for a softer filling.

How to Reheat

• Warm individual bars in a 300°F oven for 5 to 8 minutes if serving with ice cream.
• Microwave only briefly because it softens the crumble.
• Cool for a few minutes after reheating because the fruit center becomes very hot.

Serving Ideas

• Fresh raspberries and peach slices
• Lightly whipped cream

Common Mistakes to Avoid

• Adding all the peach liquid to the pan when the fruit is exceptionally juicy.
• Underbaking before the center fruit visibly bubbles.
• Cutting while warm and causing the filling to spread.
• Pressing all the crumble firmly instead of reserving loose clumps for the top.

Nutrition Information

Nutrition is an estimate and can vary with brands, portion size, ripeness, and substitutions.