Preheat oven to 450. Sift flour, baking powder, salt and sugar together in bowl. Transfer ingredients to food processor. Cut butter and lard into 1 inch slices, place in flour mixture sideways to coat. Pulse until there are pea sized crumbs.
Return to bowl, and with the tips of your fingers, press the larger pieces of butter or lard until smooth. Add milk and stir a spatula until the dough loosely comes together.
Turn dough onto floured surface, shape into rectangle 10x6. Let rest for 15 minutes covered with a towel.
Using 2 1/2 inch biscuit cutter, cut out biscuits and place on baking sheet with parchment or silpat. Coat with melted butter and a sprinkle of salt.