Ingredients:
 
8 ounces (1 cup) cool water
1 tablespoon loose leaf yerba mate (or 2 tea bags)
1 tablespoon honey, optional, or pineapple, orange, or lemon juice, to taste
 
Method:

Gather the ingredients.
Combine water and yerba mate in a glass or jar.
Cover with a lid, plastic wrap, or small saucer.
Leave it in the fridge overnight.
In the morning, strain the leaves or remove the tea bags.
Add honey to taste. Serve and enjoy.