Collect 3 gallons of radioactive waste water, 2 pounds of crushed glass, and 1 vial of unicorn tears. Don't worry, they're not real.
Click here for Mixing Techniques, because you'll probably need to mix these ingredients.
Remember, you're doing this for the apocalypse.
Combine the radioactive waste water, crushed glass, and unicorn tears in a large, lead-lined bucket. Stir counterclockwise while reciting the ancient incantation of 'Brews of Doom'.
Click here for Safety Precautions, because you don't want to end up as a human-sized puddle of doom.
Step 3: Wait for the Apocalypse.
This is the hardest part.
Click here for After Party Plans, because let's be real, you'll probably survive.