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

{
  "type": "minecraft:blasting",
  "cookingtime": 100,
  "experience": 0.7,
  "group": "iron_ingot",
  "ingredient": {
    "item": "minecraft:raw_iron"
  },
  "result": "minecraft:iron_ingot"
}