Best Oatmeal Banana Cake Recipe for Beginners
There’s just something wonderfully comforting about a cozy banana cake, especially when it’s made with hearty oats and a rich hint of chocolate. This Oatmeal Banana Cake is simple to whip up and makes for an excellent breakfast treat or afternoon snack. With its wholesome ingredients, it’s perfect for those mornings when you want something sweet but still nutritious. Plus, this recipe takes advantage of that overripe banana languishing on your counter, transforming it into a deliciously moist cake! When baked, the cake is golden and lightly crisp on the outside while remaining soft and fluffy on the inside.
Why You’ll Love This Recipe
- Wholesome and nutritious: Packed with oats, bananas, and nuts.
- Quick to prepare: Whip it up in under an hour!
- Versatile: Enjoy it warm or cold, with coffee or tea.
- Easy to customize: Use your favorite nuts or add spices.
- Perfect for meal prep: Great for grabbing on busy mornings.
Ingredients
- 1 cup (100 g) rolled oats
- 1/3 cup (80 ml) milk
- 1 very ripe banana
- 1 large egg
- 1/4 cup (30 g) almonds
- 1 tablespoon coconut oil
- 1 tablespoon cocoa powder
- Vanilla extract, to taste
- 1 teaspoon favorite sweetener
- 1 teaspoon baking powder
- A handful of walnuts and almonds for decoration
Ingredient Notes
Using very ripe bananas not only enhances the flavor of your cake but also helps keep it moist. If you’re dairy-free, feel free to substitute almond milk or any nut milk for the cow’s milk. The cocoa powder adds a lovely chocolate flavor, but you can omit it if you prefer a plain banana cake.
Kitchen Tools Needed
- Mixing bowl
- Immersion blender or regular blender
- Baking pan
- Spatula
- Dry skillet for toasting nuts
Step-by-Step Instructions
- In a bowl, combine the rolled oats and milk. Stir well and let it soak for 15 minutes to soften the oats.
- Meanwhile, cut the very ripe banana into pieces and add it to the soaked oats.
- Using an immersion blender or a regular blender, blend the mixture until smooth. You want a nice, creamy consistency without lumps.
- Add the egg and mix thoroughly; it helps to give the cake structure.
- In a dry skillet over medium heat, lightly toast the almonds until they are fragrant, usually about 3-4 minutes. Watch closely to avoid burning. Chop them and fold them into the batter.
- To the blended mixture, add the coconut oil, vanilla extract, cocoa powder, sweetener, and baking powder. Mix everything until well combined.
- Pour the batter into a greased baking pan and smooth the top. Decorate with walnut and almond pieces on top for extra crunch.
- Bake in a preheated oven at 360°F (180°C) for about 45 minutes, or until the top is golden brown and a toothpick inserted in the center comes out clean.
- Allow the cake to cool completely before slicing. Enjoy it warm or cold with a cup of tea!
Pro Tips
- Let the cake cool thoroughly for better slicing; it firms up as it cools.
- If you like a sweeter cake, add a bit more sweetener to the batter.
- For an extra layer of flavor, sprinkle some cinnamon into the batter.
- Store any leftovers in an airtight container to keep it fresh for days.
Common Mistakes
- Not soaking the oats long enough might leave them chewy instead of soft.
- Overbaking can lead to a drier cake; keep an eye on it in the last few minutes.
- Forgetting to toast the almonds could mean missing out on a deeper flavor.
Variations
- Add in a half cup of blueberries or chopped apples for a fruity twist.
- Swap the cocoa powder for cinnamon for a warm, spiced flavor.
- Use a mix of nuts, like pecans or hazelnuts, for added texture.
- Drizzle with a simple glaze made from powdered sugar and milk for a little sweetness.
Serving Suggestions
This cake pairs beautifully with a hot cup of tea or a glass of milk. It can also be served warm with a dollop of yogurt or a scoop of ice cream for dessert.
Storage Instructions
Store any leftover cake in an airtight container at room temperature for up to 3 days. For longer storage, refrigerate it for up to a week.
Reheating Tips
To reheat, place a slice in the microwave for about 15-20 seconds for a warm treat. Alternatively, you can enjoy it cold from the fridge as a refreshing snack.
Nutrition Estimate
Approximate nutrition per slice (based on 8 servings):
- Calories: 170
- Protein: 5 g
- Carbohydrates: 22 g
- Fat: 8 g
Recipe Summary
Prep Time: 15 minutes
Cook Time: 45 minutes
Total Time: 1 hour
Servings: 8
Cuisine: American
Course: Dessert/Breakfast
Calories: Approximately 170
Frequently Asked Questions
Can I use quick oats instead of rolled oats?
Yes, but the texture may be slightly different—quick oats will make for a softer cake.
Is it necessary to use coconut oil?
Coconut oil adds a subtle flavor and moisture, but you can use any neutral oil or melted butter if preferred.
How can I tell when the cake is done?
A toothpick should come out clean or with a few moist crumbs when inserted into the center of the cake.
Can I freeze this cake?
Yes! Slice and freeze in an airtight container for up to 3 months. Just thaw overnight in the fridge before enjoying.
This Oatmeal Banana Cake is such a reliable recipe that beautifully showcases the magic of using simple, wholesome ingredients. Perfect for those cozy moments or when you need a quick snack!

Oatmeal Banana Cake
Ingredients
Method
- In a bowl, combine the rolled oats and milk. Stir well and let it soak for 15 minutes to soften the oats.
- Cut the very ripe banana into pieces and add it to the soaked oats.
- Using an immersion blender or a regular blender, blend the mixture until smooth, achieving a nice, creamy consistency.
- Add the egg and mix thoroughly to give the cake structure.
- In a dry skillet over medium heat, lightly toast the almonds for about 3-4 minutes, then chop and fold them into the batter.
- To the blended mixture, add coconut oil, vanilla extract, cocoa powder, sweetener, and baking powder. Mix until well combined.
- Pour the batter into a greased baking pan and smooth the top. Decorate with walnut and almond pieces.
- Bake in a preheated oven at 360°F (180°C) for about 45 minutes, or until the top is golden brown and a toothpick comes out clean.
- Allow the cake to cool completely before slicing. Enjoy it warm or cold with a cup of tea!