Peel the banana, then mash it with a fork until it becomes a puree.

Chop the carrots in a blender, then transfer them to a bowl along with the mashed bananas and rolled oats. If the oats are too large, it is best to chop them in the blender as well. Mix all the ingredients together.

Add the sugar, baking powder, and vanilla to the oat mixture and stir well.

Before cooking, wash and dry the eggs, then add them to the oat mixture. Stir the ingredients well.

Pour the warm milk over all the ingredients and let it rest for 15 minutes. Meanwhile, the rolled oats will swell and the dough will take on a paste-like consistency.

Add the ground walnuts to the mixture. If desired, you can reserve 10-20 g of ground walnuts for decorating the cake.

Stir the dough well and let it rest for another 5 minutes.

Pour the oat dough into a silicone mold. Bake in the oven for 20-25 minutes at 180°C.

Wait until the carrot cake has cooled down.

Turn the silicone mold upside down to remove the cake onto a plate.

Sprinkle powdered sugar on top of the cake, if desired.

Spread thick sour cream on the surface of the cake and sprinkle with walnuts.

The finished dessert should be left to cool slightly, then cut into pieces. The delicate texture of this cake and its pleasant aroma are sure to please everyone. Enjoy!