Making fire resistance potion is going nowhere

if magma cubes aren't showing up, you can craft magma cream from blaze powder and a slimeball. the potion runs three minutes, eight with redstone.

are you brewing the awkward potion first? magma cream straight into a water bottle does nothing, and that's where most people stall. nether wart into the water bottles, wait for awkward, then magma cream on top of that. redstone after if you want the long version. blaze powder goes in the fuel slot, not the ingredient slot.