INGREDIENTS
grapefruit syrup
1 cup
freshly squeeze grapefruit juice
1 1/4 cups
sugar
cake
10
large egg whites, at room temperature
1 cup
cake flour
1 1/4 cups
caster sugar (I blend granulated sugar in my food processor to get this amount)
1/4 tsp
salt
1 tsp
cream of tartar
1 tsp
vanilla extract
2 cans
cold (refrigerated overnight) full-fat coconut milk