Key Lime Pie Macarons + Lime Curd Filling

INGREDIENTS

100 g

egg whites, aged 3 days

75 g

caster sugar

150 g

confectioners sugar, sifted

150 g

almond flour, sifted

1 pinch

salt

(optional) 2 drops gel food coloring, leaf green

(optional) 1 drop gel food coloring, lemon

egg, beaten

1/4 cup

key lime juice

1/3 cup

granulated sugar

2 tbsp

butter

1 tbsp

cornstarch

2 tsp

lime zest

(optional) 1 small drop gel food coloring, green leaf

egg white, large

1/3 cup

sugar

1/4 cup

butter unsalted, softened

3/4 tsp

vanilla extract