To add a recipe for a product, first you will need to make sure you have added all of the ingredients you will need for the recipe.
Once you have added these navigate to the product you wish to add the recipe to and navigate to the stock tab.
Tick the box at underneath the stock fields, labelled "Does this product have a recipe?". You will see many of the fields above are now greyed out and new fields have appeared below for you to add your ingredients.
Start typing in the Ingredient name field to to add your first ingredient, and you should see it appear for you to select.
Once you've selected your ingredient you can specify the amount of it you use in this recipe - you enter this in the stock usage field.
In this example we leave this as one, as there is one beef pattie in the beef burger. If the measurement unit for your ingredient is not correct, you will need to go back to the ingredients folder and change it.
Continue adding ingredients and specifying the quantities until you have entered the full recipe. When you have finished you can press "Done" to exit the product edit screen.