Melt the butter in a small saucepan with the milk, rum and 1 tablespoon peanut oil.
Mix the flour with the salt, baking powder and sugar, add the eggs one at a time, and then the melted butter mixture. Knead the dough until it comes away from the side of the bowl. Rest for 6 hours in the refrigerator.
Roll out the dough thinly, then cut out the shapes