If the Product Recipe of the product is similar to another product, a quick way to create a recipe is to copy it from the other product. It will save you a lot of manual work of adding all ingredients again one-by-one.
On the Product Recipe page for a product, click on the "Copy recipe from" button at the top right corner of the ingredients table.
Search for the product that you wish to use as a template for the current recipe.
If you have already entered any ingredients to the current product's recipe, Katana will ask you to confirm the copy action as your current recipe will be overwritten.
If the variant structure of the current product is different from the variant structure of the product that you are trying to use as a template for the current Product Recipe, Katana will let you choose whether you wish to also copy the variant structure from the other product or not.
Please note that the variant structure of the current product will be overwritten if you choose to also copy the variant setup from the other product.