Use the following combinations to create the corresponding food.

Energizer (cannot be injured for ten seconds)
Chili + Chili
Taco + Hamburger

Nectar (attracts nearby Queens and spawns one Queen nearby for six minutes)
Orange Juice + Orange Juice
Jelly Beans + Beer
Onion Rings + Orange Juice

Pain Killer (take half physical damage for one minute)
Beer + Beer
Vodka + Vodka

Quick Step (increase movement speed for one minute)
Milk + Jelly Beans
Wine + Beer
Bacon + Pie

Randomizer (stomach pains that make Chuck vomit three times within three minutes)
Beer + Cooking Oil
Wine + Vodka

Repulse (zombies ignore you for one minute; cancels out Zombait)
Bacon + Chili
Chili + Large Soda
Chili + Ketchup
Chili + Onion Rings
Chili + Pie

Spitfire (spit flames at zombies for one minute)
Bacon + Onion Rings
Ketchup + Ketchup
Bacon + Orange Juice
Chili + Orange Juice

Untouchable (cannot be grabbed by zombies but can still take damage from attacks for one minute)
Bacon + Bacon
Pizza + Large Soda
Bacon + Milk
Chili + Milk
Onion Rings + Milk
Onion Rings + Pie
Pie + Orange Juice
Orange Juice + Milk

Zombait (attract zombies for one minute)
Jelly Beans + Chili
Apple + Taco
Pie + Milk