At the Brooklyn restaurant Chez Ma Tante, the brunch pancakes come two to an order, big as dessert plates and almost burnt. “I knew I wanted them to be really, really crispy,” said the chef de cuisine Jake Leiber. He was inspired by a fairly straightforward pancake recipe made with bacon fat he found in “How America Eats,” the seminal cookbook by Clementine Paddleford, an American food historian. Mr. Leiber swaps the lard for butter, adds an extra egg yolk to his batter, cranks up the heat…