Dessert

Apple Cinnamon Baked Oatmeal Recipe

BySophie Carsel February 13, 2026February 13, 2026

Introduction

Apple Cinnamon Baked Oatmeal is a cozy and wholesome breakfast that’s easy to prepare and perfect for chilly mornings. Filled with warm spices and tender apples, it’s a comforting way to start your day.

A square slice of oatmeal bake sits on a white plate, showing three clear layers: the bottom layer is light beige oats held tightly together, the middle layer is slightly darker and denser, and the top layer is a golden-brown baked oat crust with a rough texture. On top, a small pile of evenly cut apple chunks with a pale cream color and light cinnamon dust sits in the center. Thick caramel sauce drips slowly down the sides of the slice and pools on the white plate, creating a shiny, smooth contrast to the oat texture. The dish rests on a white marbled surface with blurred red apples in the background. photo taken with an iphone --ar 4:5 --v 7

Ingredients

2 cups rolled oats (not instant)
1 teaspoon baking powder
1/2 teaspoon ground cinnamon
1/4 teaspoon ground nutmeg
1/4 teaspoon salt
2 cups milk (dairy or non-dairy)
1/4 cup maple syrup
2 tablespoons melted butter (or coconut oil)
1 large egg, lightly beaten
1 teaspoon vanilla extract
2 medium apples, peeled, cored, and diced
1/4 cup chopped walnuts or pecans (optional)
2 tablespoons brown sugar (optional, for topping)

Instructions

Step 1: Preheat your oven to 375°F (190°C). Grease an 8×8 inch baking dish.
Step 2: In a large bowl, combine the rolled oats, baking powder, cinnamon, nutmeg, and salt. Whisk together.
Step 3: In a separate bowl, whisk together the milk, maple syrup, melted butter (or coconut oil), egg, and vanilla extract.
Step 4: Pour the wet ingredients into the dry ingredients. Gently stir until just combined.
Step 5: Fold in the diced apples and nuts if using.
Step 6: Pour the oatmeal mixture into the prepared baking dish. Spread evenly.
Step 7: Sprinkle with brown sugar if desired.
Step 8: Bake for 35-40 minutes, or until the oatmeal is set and lightly golden brown on top. A toothpick inserted into the center should come out clean.
Step 9: Let cool slightly before serving.

Tips & Variations

For a nut-free option, omit the walnuts or pecans and add extra diced apples or dried fruit instead.
Use steel-cut oats for a chewier texture, but increase baking time slightly and add a bit more liquid.
Add a handful of raisins or dried cranberries to brighten the flavor.
Top individual servings with a dollop of yogurt or a drizzle of extra maple syrup for added richness.

Storage

Store leftovers covered in the refrigerator for up to 4 days. Reheat individual portions in the microwave for about 30-60 seconds, or warm in a 350°F (175°C) oven until heated through. This oatmeal also freezes well for up to 2 months—thaw overnight in the fridge before reheating.

How to Serve

A square-shaped oat bar sits on a white plate, topped with small cubes of soft, light beige cooked apples dusted lightly with cinnamon. The oat bar has a dense texture with visible oats and a golden brown color. Warm caramel sauce is generously poured over the oat bar, dripping down the sides and pooling around the base, adding a glossy, sticky layer. The background shows a white marbled texture surface with blurred red apples in soft focus. photo taken with an iphone --ar 4:5 --v 7

Serve this delicious recipe with your favorite sides.

FAQs

Can I use instant oats instead of rolled oats?

Instant oats are not recommended as they can result in a mushy texture. Rolled oats provide the best structure and chew for baked oatmeal.

Is this recipe suitable for vegans?

You can make it vegan by substituting the egg with a flax egg (1 tablespoon ground flaxseed mixed with 3 tablespoons water) and using plant-based milk and coconut oil instead of butter.