ServerEvents.recipes(event => {

        event.custom({
            "type": "extendedcrafting:shaped_table",
            "pattern": [
              "ABA",
              "BCB",
              "ABA"
            ],
            "key": {
              "A": {
                "item": "minecraft:nether_star"
              },
              "B": {
                "item": "minecraft:chest"
              },
              "C": {
                "item": "minecraft:egg"
              }
            },
            "result": {
              "item": "artifacts:mimic_spawn_egg"
          }
        })
})