ServerEvents.recipes(event => {
    event.recipes.create.mixing(
        [Item.of('minecraft:cobblestone', 1)], // Output: 1 Cobblestone
        [
            Fluid.of('minecraft:water', 1),   // Input: 1mB Water
            Fluid.of('minecraft:lava', 1)     // Input: 1mB Lava
        ]
    );
});