minecraft-kajetans-mod/src/main/resources/data/km/recipes/coarse_dirt.json

{
  "type": "minecraft:crafting_shaped",
  "group": "coarse_dirt_slab",
  "pattern": [
    "###"
  ],
  "key": {
    "#": {
      "item": "minecraft:coarse_dirt"
    }
  },
  "result": {
    "item": "km:coarse_dirt_slab",
    "count": 6
  }
}