Open a Brewing Stand
Place Blaze Powder in the fuel slot
Put Water Bottles in the bottom slots
Add Nether Wart to make Awkward Potion
Add Magma Cream to make Potion of Fire Resistance
Optional: add Redstone to extend the duration
Optional: add Gunpowder to make it a Splash Potion
Optional: add Dragon’s Breath to make it a Lingering Potion