Baked Cinnamon-Spiced Apple Oatmeal Squares

By AislePrompt Editorial · Published 2026-06-15 · Updated 2026-06-15

Warm and hearty baked oatmeal squares infused with cinnamon and tender chunks of apple, perfect for a wholesome breakfast or snack. This American-inspired recipe, ready in about 50 minutes, combines old-fashioned rolled oats, milk, eggs 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 180 calories and feeds 9, 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 old-fashioned rolled oats
• 1 1/2 cups milk
• 2 large eggs
• 1/4 cup brown sugar
• 2 medium apples, peeled and diced
• 2 tsp ground cinnamon
• 1 tsp baking powder
• 1 tsp vanilla extract
• 1/4 tsp salt
• 3 tbsp unsalted butter, melted

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Instructions

1. Step 1: Preheat oven to 350°F. In a large bowl, combine 2 cups old-fashioned rolled oats, 1 tsp baking powder, 2 tsp ground cinnamon, and 1/4 tsp salt.
2. Step 2: In a separate bowl, whisk together 1 1/2 cups milk, 2 large eggs, 1/4 cup brown sugar, 3 tbsp melted unsalted butter, and 1 tsp vanilla extract.
3. Step 3: Add the wet ingredients to the oat mixture and stir until combined. Gently fold in 2 peeled and diced medium apples.
4. Step 4: Pour the mixture into a greased 8x8-inch baking dish and spread evenly.
5. Step 5: Bake for 35-40 minutes until the top is golden and a toothpick inserted in the center comes out clean.
6. Step 6: Let cool slightly before cutting into squares and serving warm.