Maple Sponge Cake

Four ingredients. Maple syrup replaces sugar entirely, giving this sponge cake a rich, amber sweetness that granulated sugar can’t touch. Six eggs (separated), a cup of flour, the syrup, and optional vanilla are all you need.

The technique is pure sponge cake: whites beaten stiff, yolks beaten with maple syrup until light, the two folded together, then flour added one tablespoon at a time. That gradual flour addition while folding is what keeps the cake airy. Dumping all the flour at once deflates the egg foam and you end up with a dense, flat disc.

No butter. No oil. No baking powder. The lift comes entirely from the beaten egg whites. Folding gently with a wire whisk preserves the air you worked to build.

Serve without frosting. Berries and whipped cream are all this cake needs. The maple flavor is delicate, and a heavy frosting would bury it.

Kitchen Tips

• Beat egg whites to stiff but not dry peaks. Overbeaten whites look clumpy and break when folded.
• Sift the flour several times before using. Multiple siftings aerate the flour and make it lighter for folding.
• A lightly greased and floured tube pan works best. Despite traditional sponge cake rules about ungreased pans, this recipe performs better with a light coating.
• Cool the cake on a rack in the pan before removing. Warm sponge cakes collapse if unmolded too early.

Variations

• Maple walnut: Fold in finely chopped walnuts with the last tablespoon of flour.
• Maple cream cake: Split the cooled cake and fill with maple-flavored whipped cream.