Combine 3 tablespoons chia seeds with 1 cup milk or plant-based milk
Add 1 to 2 teaspoons sweetener, if desired
Add 1/2 teaspoon vanilla extract, if desired
Stir well
Wait 5 minutes
Stir again to break up clumps
Cover and refrigerate for at least 2 hours or overnight
Stir before serving
Add toppings such as fruit, nuts, seeds, or granola
Serve chilled