Instructions: Preheat oven to 450 F. Place 4 shallow 9-inch oval gratin dishes on a baking sheet. In each, put 1 teaspoon of jelly, 1 tablespoon of cream and 1 piece of butter.

In a mixer, beat the egg whites on medium-high speed until they form soft peaks. Gradually add vanilla sugar and lemon juice and continue to beat until stiff and shiny.

Use a large rubber spatula to gently fold egg yolks and flour into the beaten whites. Use a spatula to transfer 3 large mounds of the mixture to each of the baking dishes; shape and smooth them. Bake until puffed and golden (about 8 minutes.)

Serve immediately.

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