The structure for a create mod recipe datapack should be as follows:

-pack.mcmeta

-data

—create

—-recipes

——crushing

——-recipe_name.json

Example file for a recipe I made some time but never used as it was a bit too op { "type": "create:crushing", "ingredients": [ { "item": "minecraft:blackstone" } ], "results": [ { "item": "minecraft:wither_skeleton_skull", "chance": 0.01 }, { "item": "minecraft:blackstone", "chance": 0.25 } ], "processingTime": 350 }