Preparation of the strawberry purée: in a saucepan, pour the strawberries previously hulled and cut in half, with the sugar and lemon juice. Cook for about 5 minutes over medium heat, stirring occasionally. Mix then pass the preparation through a Chinese to obtain a creamy sauce. Let cool then set aside at room temperature for the rest.
Preparation of the sponge cake: preheat the oven to 200 ° traditional heat. Prepare a 26x36cm sponge cake pan: butter and place a baking paper in the bottom to help release from the mold. In the bowl of the food processor, pour the whites and 2tbsp of light sugar. Using the whisk, beat at medium / high speed until you obtain creamy snowy whites that form a bird's beak. In a separate bowl fitted with the flat beater, beat the egg yolks and remaining sugar until they turn pale and creamy, about 3 minutes. Add the bitter almond, salt and powdered almond then mix. Sift the flour over the bowl, mixing as little as possible (so as not to make the sponge cake brittle), just enough so as not to have lumps. Incorporate the egg whites into the previous preparation using a spatula, taking care not to mix too much: the dough obtained must be extremely light.
Pour half of the dough on the baking sheet, smooth with a spatula and bake for about 13 minutes until golden brown. Leave to stand for 5 minutes then sprinkle with a little icing sugar. Cover with a large tea towel and turn everything over. Remove the baking paper and roll the sponge cake with the tea towel to form a roll. Set aside until completely cool. Bake the second sponge cake with the remaining dough, following the same instructions.
Preparation of the icing * mascarpone and butter must be at the same temperature (taken out of the refrigerator at least 2 hours before making the icing). In the bowl of the food processor, pour the diced butter. With a flat mixer, beat until pale and creamy, about 5 minutes. Add the mascarpone then beat again at medium / high speed so that the two textures unite (if small lumps appear, continue to beat, the two ingredients will end up mixing). Add the liquid cream, then the icing sugar. Then pour in about half of the strawberry puree. Continue to mix until you get a creamy pink icing. Keep 1/4 of the icing for a more intense color by mixing it with the rest of the strawberry puree.
Assembly: cut each sponge cake in half to obtain 4 strips 13cm wide. With a spatula, garnish each strip of sponge cake with a not very thick layer of clear icing. Roll the first sponge cake on itself and then load another sponge cake so as to form a large roll at the end. Place this roll vertically on the serving platter. Refrigerate 10 minutes to firm it up. Fill 2 piping bags with icing: one light, the other dark. Then use a pastry bag to place the dark frosting on the bottom half of the cake, then the light frosting on the top of the cake and on top. Smooth with an angled spatula, without overloading the icing. Decorate as you wish.
* the cake can be kept in the refrigerator under a bell - remember to take it out about 30 minutes before tasting so that it regains its flavor. * the icing on its own can be kept in the refrigerator for a few days or frozen in an airtight box.
Par Lilie bakery
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