Looks like this calls for 5 cups brewed coffee.

Kahlua

Recipe By :
Serving Size : 1 Preparation Time :0:00
Categories : Alcohol Beverages
Coffee

Amount Measure Ingredient -- Preparation Method
-------- ------------ --------------------------------
1 quart 100 proof vodka
5 cups Coffee
1 1/2 cups Brown sugar
1 1/2 cups White sugar
2 Vanilla beans

Bring to a simmer. Bottle and set for two weeks.