what to do with 4 egg-whites, left over from my new vanilla-lavender icecream?

Since Christmas is just around the corner and most of my cookies are almost gone, I thought I could stock up.

Hazelnut Macarons

4 egg whites
230 g caster sugar
200 g grated hazelnuts
Vanilla extract
Grated orange zest
Ginger powder
Whole hazelnuts for decoration (me, the ones from Casa Aresu, handpicked)

Heat the egg whites and sugar to 60c, stir but don’t produce a foam.
In a bowl, mix hazelnuts, orange zest and spices. Add the warm eggwhite-sugar mix and stir (me I let my Kenwood do that work) until the mix has cooled down completely.
Preheat oven to 180c.
With a teaspoon, form macarons on a baking sheet, leave enough space between them as they grow while baking, decorate each cookie with a hazelnut.
Bake the macarons for about 15mins.

Let cool and enjoy.
Instead of ginger, you can add cocoa powder and/or cinnamon powder.