Softened butter RUB with sugar, add yolk, water and mix well. Add the flour and knead a soft dough. It should not stick and therefore, if necessary, pour a little flour until desired consistency. Put one hour in the refrigerator. Then roll the dough thickness of 0.5 cm.. easiest way to do this between the two films. Cut glass circles.

To shift on the baking sheet, the laid baking paper in the middle put the candy "dome" up.

Beat the whites with the powder to hard peaks. Here I took the liberty and added the lemon juice, thereby adjusted a little sweet taste. Again, all fluffed up. Transfer to a pastry bag with a nozzle asterisk, to cover the candy on top.

Bake at t=180 for about 20 mins, turning the tray the other party inside the oven (if necessary) once in ten minutes. Remove while hot, gently correct bazisnye "cap". Allow to cool and serve. Perfectly suited to a glass of dry champagne.

Perfect for a romantic dinner on Valentine's Day a glass of dry champagne.