Crafting fish bait using just one scrap of meat?

I am looking for a way to use those 7 scraps of mutant meat that are about to spoil, and thought to add a fish bait recipe that uses just one scrap (and makes 2, instead of 20, fish bait).

However, the new recipe still makes 20 fish bait as the count is defined in item definition and not in the recipe. Is there a way to override that from the recipe?

Current patch: Debian Pastezone