2 tbsp chia seeds
5 c water
1/4 lemon juice
Bring the water and chia seeds to a boil for a minute or two. Remove heat and let it set uncovered until it cools. Add the lemon juice and stevia.
Variation: Add 1/4 cup of unsweetened cranberry juice and reduce the water by the same amount. It makes a pretty pink version with just a few more calories per serving (only 20) and more vitamins and antioxidants. (I always make mine this way but it isn't the traditional version)