Ingredients

  • 1 stick plus 1 tablespoon very soft unsalted butter
  • 4 eggs, separated
  • 1 1/2 cups plus 1 teaspoon superfine sugar
  • 3/4 cup all-purpose flour
  • 2 tablespoons cornstarch
  • 1 teaspoon baking powder
  • 1/2 teaspoon baking soda
  • Zest of 1 lemon
  • 4 teaspoons lemon juice
  • 2 teaspoons milk
  • 1/2 teaspoon cream of tartar
  • 2/3 cup heavy or whipping cream
  • 1/2 cup plus 2 tablespoons good quality lemon curd

Method

  • Preheat the oven to 400F.
  • Line and butter two 8-inch cake pans.
  • Mix the egg yolks, 1/2 cup of the sugar, the butter, flour, cornstarch, baking powder, baking soda, and lemon zest in a processor.
  • Add the lemon juice and milk and process again.
  • Divide the mixture between the prepared pans.
  • You will think you dont even have enough to cover the bottom of the pans, but dont panic.
  • Spread calmly with a rubber spatula until smooth.
  • Whisk the egg whites and cream of tartar until peaks form and then slowly whisk in the cup of sugar.
  • Divide the whisked whites between the two pans, pouring or, more accurately, spreading the meringue straight on top of the cake batter.
  • Smooth one flat with a metal spatula, and with the back of a spoon, peak the other and sprinkle 1 teaspoon sugar over the peaks.
  • Put the pans into the oven for 2025 minutes.
  • With a cake-tester, pierce the cake that has the flat meringue topping to check its cooked all through.
  • (It will have risen now but will fall back flattish later.)
  • No sponge mixture should stick to the tester.
  • Remove both cakes to a wire rack and let cool completely in the pans.
  • Unmold the flat-topped one onto a cake stand or plate, meringue side down.
  • Whisk the heavy cream until thick but not stiff and set aside.
  • Spread the flat sponge surface of the first, waiting, cake with the lemon curd and then spatula over the cream and top with the remaining cake, bronze-peaked meringue uppermost.