diacraft/datapack/data/diacraft/recipes/clutter_coin_silver_to_nuggets.json

{
    "type": "minecraft:crafting_shapeless",
    "ingredients": [
        {
            "item": "clutter:silver_coin"
        }
    ],
    "result": {
        "item": "clutter:silver_nugget",
        "count": 3
    }
}