Old-fashioned oats are mixed with milk and yogurt for a portable, make-ahead breakfast that's cool, creamy, and subtly sweet.
Place 2 cups old-fashioned rolled oats, 2 cups dairy milk or unsweetened non-dairy milk, 1 cup plain Greek or non-dairy yogurt, 3 tablespoons maple syrup or honey, 1 tablespoon chia seeds (optional), 1/4 teaspoon ground cinnamon, and 1/4 teaspoon kosher salt in a large bowl.
Stir together until well combined.
You can divide the oats into individual jars at this point if desired. Cover and refrigerate for at least 4 hours, preferably overnight.
Stir again before serving with desired toppings.
Storage: Refrigerate leftovers in an airtight container for up to 4 days.