Bisquick Baking Mix is not a pantry regular for a lot of people, so here is what you can use in a pinch to replicate it. Use 1 cup of all-purpose flour, 1 ½ teaspoons of baking powder, ½ teaspoon salt and 1 tablespoon of shortening like unsalted butter or vegetable oil. Pancake mix is another replacement for Bisquick except that it has sugar and your end product will have a little sweetness to it.