Sorry to ask a rather non-specific question, but I am actually trying to formulate an example. Suppose you have a recipe to make biscuits, but what you get is quite hard, and you would like to have a softer result. What do you need to add or change in the recipe? It does not matter if it's not accurate. I just need a non-blatantly wrong process or component. 
If the recipe contains them, you can replace the following ingredients:   Milk - Replace with buttermilk or heavy whipping cream Butter - Replace with shortening, making sure to keep cold until ready to pop in the oven  