Rustic Apple Crumble with Oats

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

A comforting dessert with tender baked apples, a buttery oat topping, and a hint of cinnamon. This American-inspired recipe, ready in about 50 minutes, layers apples, rolled oats, all-purpose flour 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: 15 min Cook: 35 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. Peel and slice 4 medium apples (1/4-inch thick) into a 9x13-inch baking dish. Toss with 1/2 tsp lemon zest, 1/4 cup brown sugar, and 1 tsp cinnamon.
  2. Step 2: In a bowl, combine 3/4 cup rolled oats, 1/4 cup all-purpose flour, 1/4 cup melted butter, and 1/2 cup brown sugar. Mix until crumbly and evenly moistened.
  3. Step 3: Sprinkle oat mixture evenly over apples. Bake for 35 minutes until apples are tender and topping is golden brown, with a deep caramelized edge. Let rest 10 minutes before serving with vanilla ice cream.

Frequently asked questions

How long does Rustic Apple Crumble with Oats 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 Rustic Apple Crumble with Oats?

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 Rustic Apple Crumble with Oats?

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 Rustic Apple Crumble with Oats 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 Rustic Apple Crumble with Oats?

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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