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

{
  "type": "minecraft:crafting_shapeless",
  "group": "waxed_cut_copper_slab",
  "ingredients": [
    {
      "item": "minecraft:cut_copper_slab"
    },
    {
      "item": "minecraft:honeycomb"
    }
  ],
  "result": {
    "item": "minecraft:waxed_cut_copper_slab"
  }
}