Craft a Brewing Stand using 1 Blaze Rod and 3 Cobblestone
Get Blaze Powder to fuel the Brewing Stand
Get Water Bottles
Get Nether Wart
Brew an Awkward Potion by placing Water Bottles in the Brewing Stand with Blaze Powder and adding Nether Wart
Get a Glistering Melon Slice
Add the Glistering Melon Slice to the Awkward Potion to make a Potion of Healing
Optional: add Glowstone Dust to make a stronger Potion of Healing
Optional: add Redstone Dust to extend the potion’s duration if applicable to the potion type
Optional: add Gunpowder to make it a Splash Potion of Healing
Optional: add Dragon’s Breath to make it a Lingering Potion of Healing