One-Pan Lemon Blueberry Crumble

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

Warm, juicy blueberries baked under a buttery oat crumble topping with bright lemon zest, ready in 50 minutes for a simple yet sophisticated dessert. This American-inspired recipe, ready in about 50 minutes, layers blueberries, lemon, 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 240 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: 15 min Cook: 35 min Serves 6 American cuisine 240 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 375°F (190°C). In a medium bowl, toss 4 cups blueberries with 1 tbsp lemon zest, 1 tbsp lemon juice, 1/2 cup granulated sugar, and 3 tbsp all-purpose flour until coated.
  2. Step 2: Transfer the blueberry mixture to a 9-inch baking dish, spreading it evenly.
  3. Step 3: In a separate bowl, combine 1/2 cup rolled oats, 1/4 cup brown sugar, 1/4 tsp ground cinnamon, and 1/4 cup cold cubed butter, then use a fork to cut the butter into the dry ingredients until crumbly.
  4. Step 4: Sprinkle the oat mixture evenly over the blueberries, pressing gently to form a cohesive crumble layer.
  5. Step 5: Bake for 35-40 minutes, until the blueberries are bubbling around the edges and the topping is golden brown.
  6. Step 6: Let cool for 15 minutes before serving to allow the filling to set.

Frequently asked questions

How long does One-Pan Lemon Blueberry Crumble take to make?

Total time is about 50 minutes (15 min prep + 35 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 One-Pan Lemon 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 One-Pan Lemon 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 One-Pan Lemon 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 One-Pan Lemon 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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