Ingredients
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2 (very ripe) Bananas
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1/4 cup Walnut Oil
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11 (divided) Large eggs
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1 Lemon
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2 tsp (divided) Pure Vanilla Extract
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2 cups All-Purpose FlourIf using cake flour, add 21/4 cups and omit the cornstarch)
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2 Tbsp Corn Starch
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2 tsp Baking Powder
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2 1/4 cups (divided) Sugar
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1/2 tsp Salt
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1 1/2 tsp (divided) Cream of Tartar
Directions
Steps
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1
Done
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Special EquipmentA 9-10" springform pan, a wire cooling rack, a stand mixer, a double boiler or bain-marie, a whisk, and a kitchen torch. See recommendations below. |
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2
Done
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Preheat the oven to 325°F/160°C (the rack should be in the lower third of the oven). Grease your springform cake pan. |
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3
Done
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Make the BatterPeel and mash the bananas in your mixing bowl, food processor or stand mixer. Add the walnut oil. Juice one lemon and add the juice. Separate 7 eggs. Set the whites aside and add the 7 egg yolks and 1 tsp. of vanilla. Mix well. Then add the flour, 1 cup of sugar, baking powder, corn starch, and 1/2 tsp salt. Beat until smooth and thickened - about 2 minutes. |
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4
Done
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Make the Meringue for the Cake BatterUsing a new bowl for your stand mixure and a whisk beater, beat the 7 egg whites with 1tsp cream of tartar on low until it becomes foamy. Increase the speed to medium-high until a stiff peak forms. Add 2 Tbsp of sugar and beat another 30 seconds. |
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5
Done
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Add the Meringue to the Cake BatterGently fold in the meringue to the batter. Do not mix too much. This will ensure the cake stays really fluffy. |
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6
Done
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Bake the Banana Lemon CakeScrape the batter into the cake pan. Bake for 50-60 minutes (or until a toothpick is inserted and comes out clean). NOTE! This cake will rise above the pan and crack at the top - this is normal. Do not open the oven door or it will completely deflate. |
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7
Done
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Immediately remove the cake from the spring form and let it cool on a baking rack. |
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8
Done
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Make the Toasted Marshmallow FrostingBoil water in your bain-marie/double boiler, or use a pan and a large bowl that sits on top. Then reduce to a simmer. Separate the remaining 4 eggs. Save the egg yolks for another recipe. Add the egg whites, 1/2 tsp cream of tartar, a pinch of salt, and 1 cup of sugar to the top pan of the double boiler. (Tip - to make the sugar extra fine, you can blend in in a food processor for a good minute). Whisk constantly until all the sugar has dissolved - 3-4 minutes. Transfer the mixture to a stand mixer and using a whisk attachment, mix on high spead for a good 7-8 minutes until stiff and shiny peaks form. Add 1 tsp of vanilla and mix another 10 seconds. |
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9
Done
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Decorate the Cake with the Marshmallow FrostingSpread the fluffy marshmallow frosting on the cake. Using a kitchen torch, lightly torch the frosting to make golden brown spots. |
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10
Done
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Recommended Equipment |
