Enhanced-Explosives/src/main/resources/data/enhancedexplosives/recipes/tnt_16.json

{
  "type": "minecraft:crafting_shaped",
  "category": "redstone",
  "pattern": [
    "AA ",
    "AA ",
    "   "
  ],
  "key": {
    "A": {
      "item": "enhancedexplosives:tnt_8"
    }
  },
  "result": {
    "item": "enhancedexplosives:tnt_16"
  }
}