Tiramisu Cupcakes with eggs

1 (18 1/4 ounce) package white cake mix 3 eggs 1/3 cup oil 1 1/4 cups water 1 Make mascarpone filling mix first & allow to chill 4-6 hours or overnight. 2[...]

6 eggs , separated (separate when cold, allow to come to room temp) 3/4 teaspoon cream of tartar 1 cup sugar , divided 3 tablespoons water , room temp 1[...]

60 vanilla wafers 5 teaspoons instant coffee , divided 3 tablespoons hot water , divided 4 (8 ounce) packages cream cheese , softened 1 cup granulated sugar 1[...]