Ingredients
4 egg yolks
4 egg whites, beaten, with a few drops of vinegar, to stiff peaks
1/2 liter of warm milk
125 grams of unsalted butter, melted, then cooled slightly until just warm
140 grams of powdered sugar
zest of half a lemon
112 grams of all-purpose flour
1 vanilla bean, cut in half with seeds scraped
Preparation
