NUNS' SIGHS

This is a  typical treat by Spanish nuns who often used to make a living by selling cakes and sweets. They are very light, as light as the sigh of a nun, hence their name.

You need
 - 3 egg whites
- 125 gr sugar
- 125 gr powdered almonds
- grated zest of half a lemon
- little muffin cases

Preheat the oven at 220 degrees.

Whisk the egg whites. Add the sugar in little bits and continue whisking until the mixture becomes glossy. Fold in the almonds and then the lemon zest.

Spoon the mixture into the cases. Bake until golden - they often take 10-12 minutes, but it depends a bit on the size of the paper case.