{
  "format_version": "1.16",
  "minecraft:recipe_shaped": {
    "description": {
      "identifier": "minecraft:polished_blackstone"
    },
    "tags": [ "crafting_table" ],
    "pattern": [
      "##",
      "##"
    ],
    "key": {
      "#": {
          "item": "minecraft:blackstone"
      }
    },
    "result": {
      "item": "minecraft:polished_blackstone",
      "count": 4
    }
  }
}