Ingredients:
daisy roots (chopped)- 8 grams
shrivelfig (skinned)- one
caterpillar (sliced)- one
nettles (dried and crushed)- 8 grams
leech juice- a dash
ginger root (chopped)- 4 grams

Instructions:
Prepare and measure all ingredients ahead of time. Daisy roots and giner roots should be evenly chopped. Make sure all of the peel is removed from the shrivelfig. Caterpillar slices should be small and even. Dried nettles should be crushed, but not powdered, in a mortar and pestle. Leech juice will be provided by the professor (please walk carefully to the desk at the front of collect it before you begin brewing the potion).
Add daisy roots, shrivelfig, caterpillar slices, and nettle to 500 mL boiling water. Stir (direction is unimportant) for 2 minutes.
Add a dash of leech juice. Allow the solution to stew, stirring occassionally, for half an hour.
Add the ginger root and stir (direction is unimportant) for 2 minutes. Remove cauldron from the fire and allow potion to cool.
Write your name and house on two vials. Very carefully distribute your potion into the two vials (do not allow the potion to touch anything that is not the vial or the ladle- do not get on your hands!) Bring one to the front for grading and keep one vial at your desk for testing.