These Recipes are produced either in the Cooking Pot or in the Preserving Bin. They can be considered the equivalent of the magic potions found in other games and will either transform food for preservation or alter your character's stats and abilities.
The recipes are found either in drops from killing dinos or sometimes in supply drops or other loot objects. Don't worry, though, other than telling you what to put in the pot, these Recipes have no effect in game. This means that you can make anything, regardless of whether or not you have ever found a recipe. You just have to put the right stuff in the pot.
The Rockwell Recipes found in Ark: Survival Evolved are a bit cryptic when it comes to the exact amounts of the ingredients required. However, making sense of them is pretty easy with this simple guide.
Please remember that some of these recipes are produced in the Cooking Pot, while others are produced in the Preserving Bin.