Half-Baked Cinnamon Apple Oatmeal Bars

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

Chewy oatmeal bars with chunks of cinnamon-spiced apples, baked just until set for a tender, wholesome snack. This american-inspired desserts ready in about 30 minutes layers rolled oats, whole wheat flour, baking powder 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 180 calories and feeds 9, 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: 10 min Cook: 20 min Serves 9 American cuisine 180 cal/serving
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Ingredients

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Instructions

  1. Step 1: Preheat oven to 350°F and grease an 8x8-inch baking pan. In a large bowl, combine 1 1/2 cups rolled oats, 1 cup whole wheat flour, 1 tsp baking powder, 1 1/2 tsp ground cinnamon, and 1/4 tsp salt; mix well.
  2. Step 2: In a separate bowl, whisk together 1/2 cup melted butter, 1/2 cup packed brown sugar, 1 large egg, 1 tsp vanilla extract, and 1/4 cup milk until smooth.
  3. Step 3: Pour the wet ingredients into the dry ingredients and stir until just combined. Fold in 1 medium peeled and diced apple (1/2-inch cubes).
  4. Step 4: Spread the batter evenly into the prepared pan and bake for 20 minutes until the edges are golden and a toothpick inserted near the center comes out with moist crumbs.
  5. Step 5: Let the bars cool in the pan on a wire rack for 15 minutes before cutting into squares and serving.

Frequently asked questions

How long does Half-Baked Cinnamon Apple Oatmeal Bars take to make?

Total time is about 30 minutes (10 min prep + 20 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 Half-Baked Cinnamon Apple Oatmeal Bars?

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 Half-Baked Cinnamon Apple Oatmeal Bars?

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 Half-Baked Cinnamon Apple Oatmeal Bars for a different number of people?

The recipe is written for 9 servings. Multiply each ingredient by (your serving target / 9). 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 Half-Baked Cinnamon Apple Oatmeal Bars?

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.