Hello i have made a potion brewing list i hope this is help full to you...

BASE POTIONS...
Redstone+water=Mundane Potion
Glowstone+Water=Thick Potion
Nether Wart+Water= Awkward Potion

Mundane Potion
+ Fermented Spider Eye= Potion of Weakness( i think if you mix the Fermented Spider Eye with any BASE Potion you will get a Potion of Weakness)

Thick Potion
I have not found anything to brew with this...

Awkward Potion
+ Magma Cream=Potion of Fire Resistance(+redstone=8:00)
+Ghast Tear=Potion of Healing(+Glowstone=Potion of Healing Tier II)
+ Blaze Powder=Potion of Strength[3:00](+Glowstone=Potion of Streght Tier II [1:30])
+ Sugar=Potion of Swiftness[3:00](+Redstone=8:00) (WHEN MIXED with Glowstone=Potion of Swiftness Tier II [1:30]