Crafting using Any Electrum Nugget, Any Electrum Nugget, Any Electrum Nugget, Any Electrum Nugget, Any Electrum Nugget, Any Electrum Nugget, Any Electrum Nugget, Any Electrum Nugget and Any Electrum Nugget, arranged in the pattern shown. Produces Electrum Ingot.
Crafting 
Electrum Ingot guaranteedCrafting using Electrum Block, in any arrangement. Produces 9× Electrum Ingot.
Crafting ⇆ any arrangement 
Electrum Ingot ×9 guaranteedMixing using Any Gold Ingot and Any Silver Ingot. Produces 2× Electrum Ingot.
Mixing conditional Any Gold Ingot·members not yet documented
Any Silver Ingot Electrum Ingot ×2 guaranteedCrafting using Electrum Ingot, in any arrangement. Produces 9× Electrum Nugget.
Crafting ⇆ any arrangement 
Electrum Nugget ×9 guaranteedcreateaddition:electrum_ingotcreateadditioncreateadditionforge:items/ingots/electrum forge:items/ingots minecraft:items/beacon_payment_items
Recipe JSON (3):
{
"recipe_type": "minecraft:crafting_shaped",
"pattern": [
"EEE",
"EEE",
"EEE"
],
"ingredients": {
"E": {
"tag": "forge:nuggets/electrum"
}
},
"conditions": [],
"sequence": null,
"group_name": null,
"experience": null,
"cooking_time": null
}{
"recipe_type": "minecraft:crafting_shapeless",
"pattern": null,
"ingredients": {
"item": "createaddition:electrum_block"
},
"conditions": [],
"sequence": null,
"group_name": null,
"experience": null,
"cooking_time": null
}{
"recipe_type": "create:mixing",
"pattern": null,
"ingredients": [
{
"tag": "forge:ingots/gold"
},
{
"tag": "forge:ingots/silver"
}
],
"conditions": [
{
"raw": {
"type": "forge:not",
"value": {
"tag": "forge:ingots/silver",
"type": "forge:tag_empty"
}
},
"type": "forge:not"
}
],
"sequence": null,
"group_name": null,
"experience": null,
"cooking_time": null
}