A warm, inviting aroma fills the kitchen as the banana and oatmeal diet cake bakes to golden perfection. This wholesome recipe takes about an hour to prepare and bake, making it an ideal treat for those looking for something nutritious yet satisfying. The combination of ripe bananas and oats not only creates a deliciously moist texture but also offers a guilt-free dessert option.
This recipe is perfect for anyone seeking a healthier alternative to traditional cake, whether for breakfast or as a light snack. It’s a wonderful choice for meal prep, as it can be stored and enjoyed throughout the week.
Why You’ll Love This Recipe
- The cake is moist and tender thanks to the ripe bananas.
- Oats provide a hearty texture while adding fiber.
- It’s easy to prepare with just one bowl.
- A delightful way to use up overripe bananas.
What You’ll Need
Gather the following ingredients to create this delightful dish:
For the Cake
- 2 bananas, well-ripened
- 120 g oat flakes, blended into flour-like consistency
- 2 eggs
- 100 g plain yogurt (or fromage blanc)
- 1 tsp baking powder
- 1/2 tsp cinnamon (optional)
- 1 pinch salt
- 1 tsp vanilla extract (optional)
For a non-dairy option, use plant-based yogurt.
Substitutions & Swaps
- Use apple sauce instead of yogurt for a vegan version.
- Swap oat flakes for whole wheat flour for a different texture.
- Agave syrup can replace vanilla extract for added sweetness.
- Nutmeg can replace cinnamon for a unique flavor twist.
How to Make It
Let’s dive into the preparation of this delightful cake.
1. Preheat the Oven
Preheat your oven to 180°C (350°F) to ensure even baking.
2. Blend the Oats
Blend the oat flakes until they achieve a flour-like consistency, providing a great base for the cake.

3. Mash the Bananas
Mash the ripe bananas into a smooth puree, which will naturally sweeten and moisten the cake.
4. Mix in the Wet Ingredients
Add the eggs and yogurt to the mashed bananas and mix thoroughly until combined.
5. Combine All Ingredients
Incorporate the blended oatmeal, baking powder, salt, cinnamon, and vanilla into the wet mixture, stirring until just combined.
6. Pour into the Pan
Pour the batter into a greased cake pan and smooth the surface for an even bake.
7. Bake the Cake
Bake in the preheated oven for 30 to 35 minutes. Let it cool for a few minutes before transferring it to a wire rack to cool completely.
How to Store It
- Fridge: Store in an airtight container for up to 5 days.
- Freezer: Yes, wrap slices in plastic for freezing.
- Reheat: Microwave for 20-30 seconds or until warmed.
Tips for Best Results
- Use very ripe bananas for optimal sweetness and moisture.
- Do not overmix the batter to prevent a dense cake.
- Let the cake cool completely before slicing for cleaner cuts.
- For added richness, consider adding chopped nuts or dried fruits.
Serving Suggestions
- Enjoy with a dollop of Greek yogurt on top.
- Pair with a cup of tea or coffee for a cozy snack.
- Serve as a wholesome breakfast option with fresh fruit.




