To prepare this delectable banana cake, begin by preheating your oven to 375F. Grab a 9-inch spring form pan and line it with baking paper, and make sure to grease the sides to prevent sticking.
Next, take some ripe bananas and place them in a bowl, using a fork to mash them until they're nice and smooth. Add in the eggs, oil, and sugar, and give it all a good whisk until everything is nicely combined and the mixture is smooth.
Grab a sifter and add in the flour and baking powder, giving it a sift to remove any lumps. Add this to the wet mixture and stir until everything is well incorporated and you're left with a nice, smooth batter.
Pour the batter into the prepared spring form pan and pop it into the preheated oven. Bake for around 45 minutes, or until a toothpick inserted into the center comes out clean. Once it's done, remove it from the oven and let it cool before removing it from the spring form pan.
When you're ready to serve, slice the cake into portions and add a dollop of whipped cream on top, along with some fresh blueberries and banana slices. Enjoy this delicious banana cake with friends and family!