Where can I make the potion

Hint 1 of 5:

Anywhere, but you need a mixing bowl.

Hint 2 of 5:

There is one in the alchemy lab. You can take it with you.

Hint 3 of 5:

Put both items in the bowl and a potion will be created.  +20 points

Hint 4 of 5:

You can pick up and carry it around with you.

Hint 5 of 5:

EAT POTION right after 7:30 Champagne toast starts, then play.