NaturesAura/src/main/resources/data/naturesaura/recipes/sky_shoes.json

{
    "type": "minecraft:crafting_shaped",
    "pattern": [
        "A A",
        "A A"
    ],
    "key": {
        "A": {
            "item": "naturesaura:sky_ingot"
        }
    },
    "result": {
        "item": "naturesaura:sky_shoes"
    }
}