In a jar or container, combine the milk with one tablespoon of the Nutella
Stir the milk and Nutella together (or just shake the jar - so much easier to make Nutella oatmeal this way!).
Add the oats and chia seeds if using and stir or shake again.
Top with a spoonful of Nutella, or do what I do - I add about 1 teaspoon of milk to 1 teaspoon of Nutella and pop it in the microwave for about 15 seconds, just enough to warm it up. Then I stir it up and it become this really nice Nutell-y fudge sauce. I layer that on top of my Nutell overnight oats, staight in the jar. When I take it out of the fridge the next morning, I have this nice Nutella fudgy layer 😋
Cover and refrigerate overnight or for at least 6 hours to let your nutella overnight oats work their magic.
The next morning, check the consistency of your oatmeal nutella creation and add a splash of milk if you want it thinner, or a few more oats if you want it thicker.
Enjoy as is or top with fresh or frozen fruit, nuts, yogurt, chocolate chips,...