Once you have 1 Infinity, you have ∞ Infinities.

Infinity is never consumed by crafting recipes, allowing THIS recipe to be possible:

You might be able to figure out what happens if you use this recipe..!
Recipes
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Here's how you can get your first infinity!

9 Void blocks

1 Glowstone Preons

9 Cardboard This recipe was deemed too OP so I slapped a Bedrock in the middle

Here's some funny infinity recipes you can do with infinity!

Smelting in a Furnace (cooking time: 1000000. XP reward: 100... *it may not be worth it)

Smelting on a Campfire (cooking time: 1000000)

Brewing! (uses any potion)

Or, if you don't feel like using a bottle:

Infinity Pearl
Foreverstone
Infinity Star
Void
Random Block