minecraft-assets/data/minecraft/recipe/candle.json

{
  "type": "minecraft:crafting_shaped",
  "category": "misc",
  "key": {
    "H": {
      "item": "minecraft:honeycomb"
    },
    "S": {
      "item": "minecraft:string"
    }
  },
  "pattern": [
    "S",
    "H"
  ],
  "result": {
    "count": 1,
    "id": "minecraft:candle"
  }
}