Three Quarters Berry Crumble Bars

By AislePrompt Editorial · ·

How this recipe was made — this recipe was drafted by AislePrompt's AI-assisted pipeline from technique templates and USDA-sourced nutrition data, and published by AislePrompt Editorial — see how AislePrompt recipes are developed and reviewed.

Sweet and tangy mixed berry bars with a buttery oat crumble topping, perfect for a fruity dessert or snack. This American-inspired Fourth of July recipe, ready in about 60 minutes, pairs rolled oats, all-purpose flour, brown sugar for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 220 calories and feeds 12, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 15 min Cook: 45 min Serves 12 American cuisine 220 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 350°F. In a large bowl, combine 1 1/2 cups rolled oats, 1 cup all-purpose flour, 3/4 cup packed brown sugar, 1/2 tsp baking powder, and 1/4 tsp salt.
  2. Step 2: Pour in 3/4 cup melted unsalted butter and mix with a spatula until crumbly but holds together when pressed.
  3. Step 3: Press two-thirds of this oat mixture evenly into the bottom of a 9x13-inch baking pan to form the crust.
  4. Step 4: In another bowl, toss 3 cups mixed berries with 1/4 cup granulated sugar, 2 tbsp cornstarch, and 1 tbsp lemon juice until berries are well coated.
  5. Step 5: Spread the berry mixture evenly over the oat crust layer.
  6. Step 6: Sprinkle the remaining one-third oat mixture evenly over the berries as a crumble topping.
  7. Step 7: Bake for 40-45 minutes until the topping is golden brown and berries are bubbly.
  8. Step 8: Let cool completely before cutting into bars for clean slices.

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