TheWildBackport/common/src/main/resources/data/wildbackport/recipes/mangrove_button.json

{
  "type": "minecraft:crafting_shapeless",
  "group": "wooden_button",
  "ingredients": [
    {
      "item": "wildbackport:mangrove_planks"
    }
  ],
  "result": {
    "item": "wildbackport:mangrove_button"
  }
}