This oatmeal coffee cake is cozy, filling, and perfect for make-ahead breakfasts. It’s lightly sweetened with maple syrup, packed with warm spices, and finished with a buttery crumble on top. Whether you’re feeding a busy family or prepping breakfast for the week, this baked oatmeal is an easy, comforting option that reheats beautifully.
Related: Blueberry Muffins

Ingredients
Applesauce
Adds natural sweetness and moisture while keeping the oatmeal soft and tender.
Sour Cream
Creates a creamy texture and adds richness without making the oatmeal heavy.
Maple Syrup
Sweetens the oatmeal naturally and pairs perfectly with warm spices.
Vanilla
Enhances the overall flavor and adds warmth.
Nutmeg
Adds a subtle depth that complements the cinnamon.
Cinnamon
Brings classic apple spice flavor to the dish.
Rolled Oats
The base of the recipe, providing structure, fiber, and a hearty texture.
Baking Powder
Gives the oatmeal a light lift so it isn’t dense.
Brown Sugar
Creates a sweet, caramel-like crunch on top.
Cinnamon
Adds extra warmth and spice to the crumble.
Flour
Helps form a crumbly topping.
Butter
Binds the topping together and adds richness.
Chopped Nuts
Add crunch and texture for contrast.
Instructions
Mix all base ingredients together
Pour into a prepared 9×13 pan
Leave refrigerated overnight
Preheat oven to 350
Mix all topping ingredients together
Top base with topping
Bake for 10-20 minutes until heated through
Related: Dutch Baby Pancake
Oatmeal Coffee Cake
Ingredients
- 1 cup applesauce
- 2 cups sour cream
- 1/2 cup maple syrup
- 1 tsp vanilla
- 1/2 tsp nutmeg
- 1 tbsp cinnamon
- 3 cups rolled oats
- 1 tsp baking powder
Topping:
- 1/3 cup brown sugar
- 1 tsp cinnamon
- 2 tbsp flour
- 4 tbsp butter
- 1/2 cup chopped nuts
Instructions
- Mix all base ingredients together
- Pour into a prepared 9×13 pan
- Leave refrigerated overnight
- Preheat oven to 350
- Mix all topping ingredients together
- Top base with topping
- Bake for 10-20 minutes until heated through


