renewable-resources/data/renewable/recipe/granite_from_cobblestone.json

{
  "type": "minecraft:crafting_shapeless",
  "category": "building",
  "ingredients": [
    "minecraft:cobblestone",
    "minecraft:cobblestone",
    "minecraft:cobblestone",
    "minecraft:cobblestone",
    "minecraft:cobblestone",
    "minecraft:cobblestone",
    "minecraft:cobblestone",
    "minecraft:cobblestone",
    "minecraft:brick"
  ],
  "result": {
    "id": "minecraft:granite",
    "count": 8
  }
}