Baked Raspberry Blueberry Crumble

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A sweet-tart fruit filling topped with a buttery oat crumble, baked until golden and served warm with vanilla ice cream for a perfect dessert. This American-inspired recipe, ready in about 60 minutes, layers fresh raspberries, fresh blueberries, granulated sugar into a dessert worth slowing down for — great for weekend baking, holiday tables, or any time you want a sweet payoff at the end of a meal. Each serving lands at about 280 calories and feeds 6, so it slots into a weekend bake or a special-occasion dessert tray. 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: 20 min Cook: 40 min Serves 6 American cuisine 280 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 375°F. In a medium bowl, combine 1 cup fresh raspberries, 1 cup fresh blueberries, 1/2 cup granulated sugar, and 2 tbsp all-purpose flour. Mix until berries are evenly coated and sugar dissolves, then transfer to a 9-inch baking dish and spread evenly.
  2. Step 2: In a separate bowl, mix 1/2 cup rolled oats, 1/4 cup brown sugar, 1/2 tsp ground cinnamon, and 3 tbsp cold cubed butter. Use fingers or a pastry cutter to blend until mixture resembles coarse crumbs.
  3. Step 3: Sprinkle the oat mixture evenly over the berry filling.
  4. Step 4: Bake in preheated oven for 35-40 minutes, or until top is golden brown and fruit filling is bubbling around edges.
  5. Step 5: Let cool for 10 minutes before serving, and serve warm with a scoop of vanilla ice cream.

Frequently asked questions

How long does Baked Raspberry Blueberry Crumble take to make?

Total time is about 60 minutes (20 min prep + 40 min cook). Most home bakers find this fits a weekend afternoon; chill or store as the recipe directs before serving.

How do I store leftover Baked Raspberry Blueberry Crumble?

Cool fully before storing. Most baked desserts keep at room temperature in an airtight container for 2–3 days, or in the fridge for up to 5 days. Cream- or custard-based desserts must go in the fridge within 2 hours; reheat gently or serve cold per the recipe.

Can I substitute ingredients in Baked Raspberry Blueberry Crumble?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Baked Raspberry Blueberry Crumble for a different number of people?

The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Baked Raspberry Blueberry Crumble?

American desserts like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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