Madeleines

epicurious.com. Makes 9. 7 steps

1 egg		beat	Refrigerate 1 hour. Grease moulds with butter, fill then 3/4 full. Bake in moderately hot oven 10–12 minutes. Cool.
50g sugar
1/2 lemon's zest	grated	fold in
56g plain flour
46g unsalted butter	melt, cool	fold in