Putting a twist on an elegant classic for the holidays with these Eggnog Madeleines.
Remove eggs from fridge and set aside to bring to room temperature.
Sift flour, baking powder, nutmeg (if using), and salt into a medium bowl.
Whisk together room temperature eggs, sugar, and brown sugar with a mixer on speed until light in colour and fluffy, about 10 minutes.
Fold in flour mixture in 2 additions, folding until just barely combined. Fold in melted butter, then honey, vanilla, and eggnog. Cover with plastic wrap then refrigerate for at least 2 hours.
Preheat oven to 350° F and remove batter from fridge and let stand for 10 minutes.
Generously butter madeleine pans with more melted butter using a pastry brush.
Fill each madeleine mould 3/4 way full. To this either use a pastry bag with a 1/2" opening or simply fill by pushing batter with 2 spoons.
Bake on the middle rack for 8-11 minutes (or 6-8 minutes for mini-madeleines). Tap pan gently then turn over and shake out onto a cooling rack.
Wash, rebutter moulds and repeat process until all batter has been used.
Whisk together icing sugar and eggnog. Dip indented side of madeleines into icing. Place on cooling rack to dry (can take up to 60 minutes).