Craft a Brewing Stand using 1 Blaze Rod and 3 Cobblestone or Blackstone
Collect Blaze Powder to fuel the Brewing Stand
Get Glass Bottles and fill them with Water to make Water Bottles
Get Nether Wart and brew it with Water Bottles to make Awkward Potions
Get Glistering Melon Slices
Brew Glistering Melon Slices with Awkward Potions to make Potions of Healing
To make a Splash Potion of Healing, brew Gunpowder with the Potion of Healing
To make a Lingering Potion of Healing, brew Dragon’s Breath with the Splash Potion of Healing
To make stronger healing, brew Glowstone Dust with the Potion of Healing to get Potion of Healing II