Create/src/main/resources/data/create/recipes/crushing/charcoal.json

{
    "type": "create:crushing",
    "group": "minecraft:misc",
    "ingredients": [
    	{
    		"item": "minecraft:charcoal"
    	}
    ], 
	"results": [
		{
			"item": "minecraft:black_dye",
			"count": 1
		},
		{
			"item": "minecraft:gray_dye",
			"count": 2,
			"chance": 0.1
		}
	],
	"processingTime": 100
}