BeginnerEnchanting & brewing
Potion brewing in Minecraft: every recipe in one place
Dragon's Breath turns a splash potion into a Lingering Potion.
Tested 26.3

Dragon's Breath is the purple breath of the Ender Dragon, caught in a glass bottle.
Use a Glass Bottle on the purple cloud left by the dragon's breath attack or by its fireballs. Added to a splash potion it makes a lingering potion that leaves an effect cloud on the ground, and lingering potions tip arrows.
This item has no crafting recipe.
Dragon's Breath turns a splash potion into a Lingering Potion.
It turns splash potions into lingering ones.
You Need a Mint (Collect Dragon's Breath in a Glass Bottle).