Enhanced-Explosives/src/main/resources/data/compressedtnt/recipes/tnt_cluster_2.json

{
  "type": "minecraft:crafting_shapeless",
  "category": "redstone",
  "ingredients":[
    {
      "item": "minecraft:tnt"
    },
    {
      "item": "minecraft:tnt"
    }
  ],
  "result": {
    "item": "compressedtnt:tnt_cluster_2"
  }
}