Chop a whole apple into bite sized pieces.
Transfer to a medium microwave safe bowl. Add in 2 teaspoons of maple syrup, ½ teaspoon ground cinnamon, and a pinch of salt. Stir and microwave for 60 seconds, until apples soften.
Add ¾ cup old fashioned oats, ¼ cup yogurt, 1 teaspoon ground flax, and ¾ cup milk to an airtight container. Top with cooked apples. Refrigerate overnight or up to 5 days. Eat hot or cold.