minecraft-assets/data/minecraft/recipes/gold_ingot_from_smelting_raw_gold.json

{
  "type": "minecraft:smelting",
  "group": "gold_ingot",
  "ingredient": {
    "item": "minecraft:raw_gold"
  },
  "result": "minecraft:gold_ingot",
  "experience": 1.0,
  "cookingtime": 200
}