High-Altitude Baked Apple Cinnamon Oatmeal

By AislePrompt Editorial · Published 2026-04-27 · Updated 2026-04-27

Warm baked oatmeal infused with fresh apples and cinnamon, ideal for a comforting breakfast at high elevations. This American-inspired high-protein recipe, ready in about 50 minutes, combines rolled oats, milk, large apple into a breakfast that fuels the morning without the midday crash — make-ahead-friendly and balanced enough to anchor the first meal of the day. Each serving lands at about 320 calories and feeds 4, so it sits comfortably in a weekly breakfast rotation alongside fruit, yogurt, or coffee. 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.

Ingredients

• 2 cups rolled oats
• 2 1/2 cups milk
• 1, peeled and diced large apple
• 1/4 cup brown sugar
• 1 1/2 tsp ground cinnamon
• 1 tsp baking powder
• 1 tsp vanilla extract
• 1/4 tsp salt
• 1/2 cup chopped walnuts
• 2 tbsp, melted butter

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Instructions

1. Step 1: Preheat oven to 375°F. In a large mixing bowl, combine 2 cups rolled oats, 1/4 cup brown sugar, 1 1/2 tsp ground cinnamon, 1 tsp baking powder, and 1/4 tsp salt.
2. Step 2: Stir in 2 1/2 cups milk, 1 tsp vanilla extract, 2 tbsp melted butter, and 1 peeled and diced large apple until well combined.
3. Step 3: Fold in 1/2 cup chopped walnuts, then pour mixture into a greased 8x8 inch baking dish, spreading evenly.
4. Step 4: Bake uncovered for 35-40 minutes until the top is golden and the oatmeal is set and bubbling around the edges.
5. Step 5: Let cool for 5 minutes before serving warm, allowing the baked oatmeal to firm up slightly.