Even the quantities and order of preparation are not inherently copyrightable. Per parent comment's citation, where a recipe or formula is accompanied by substa

Even the quantities and order of preparation are not inherently copyrightable. Per parent comment's citation, where a recipe or formula is accompanied by substantial literary expression. "Fill pitcher with water, add lemon juice and sugar" is not going to pass muster as "substantial literary expression". But if I republished your 5 page story about how your grandma used to make this lemonade and you remember drinking it on the porch of her cottage on Cape Cod, then I would be infringing on your copyright. Just the ingredients, quantities, and procedure explained in a factual manner is explicitly not copyrightable in the US: > A recipe is a statement of the ingredients and procedure required for making a dish of food. A mere listing of ingredients or contents, or a simple set of directions, is uncopyrightable. As a result, the Office cannot register recipes consisting of a set of ingredients and a process for preparing a dish. Your explanations of why a process is followed, and other supplemental information beyond the instructions, can be copyrightable.