It's the same custard used in my favorite coconut ... from for the buttercream you want to use on your cake: American-style buttercream, Italian meringue buttercream, or cream cheese buttercream.
Rub the flour and butter together until the mixture resembles fine crumbs. Add the sugar, currants, cocoa powder, spice and baking soda and mix well. Add the buttermilk and mix to a smooth dough ...
"We’re a strictly Italian pastry shop ... Joseph’s Day, and Thanksgiving when the bakery churns out specialty custard cakes and other holiday goodies. Wedding cakes are also available.