Whisk the eggs and sugar together in a mixing bowl for a few minutes until they become pale and creamy.
Mix the almond flour, all-purpose flour, and baking powder together, and then fold them into the eggs and sugar mixture. Stir in the mashed banana.
Grease 4 mini cake tins/pudding basins and line with two strips of greased parchment paper (baking paper).
Fill the pudding basins one-third, then add a teaspoon each of chocolate chips and chopped walnuts to the center of each one. Pour the remaining banana sponge cake batter over it, leaving a small gap at the top for them to rise. Place them onto a baking tray.
Bake the mini banana sponge puddings for 15 minutes or until the top is golden brown and remove from the oven. Allow to cool for 5 minutes before turning out.
Serve each mini banana sponge pudding warm and topped with freshly whipped cream abd more chopped walnuts.
Notes
For best results, always weigh ingredients by the gram using a digital scale.
Always use room temperature eggs in baking.
You can replace the plain/all-purpose flour with polenta flour to make this dessert gluten-free.
Use the strips of parchment paper to help you gently tug the sponge out of the tin. Run a knife around the edge to make it easier if necessary.
This mini sponge cake recipe can be made ahead of time and reheated in the microwave.
Store wrapped in plastic food wrap to maintain its moist texture.
It also freezes well, wrap each sponge pudding in plastic food wrap and aluminum foil and use within 1 month.