Make a Week of Steel-Cut Oats in 5 Minutes

Ingredients
1 2/3 cups steel-cut oats
4 cups water
Large pinch salt
Mix-Ins:
Milk or soy milk
Cinnamon or other spices
Raisins or other dried fruit
Walnuts or other nuts
Jam
Honey

Equipment
5 pint-sized Mason jars with lids (I used wide-mouth jars)
Large saucepan
Ladle

Instructions

1. Collect your jars and other equipment. I like pint-sized jars for this as they allow a little more room for adding nuts, raisins, and milk later. But you can also use half-pint jars.
2. Bring the oats, water and salt to a boil. Simmer for about 3 minutes then turn off the heat.
3. Ladle the oats and water into the jars. Cover the jars tightly with their caps and rings. Leave on the counter overnight. (This is how I make my oatmeal and I have had absolutely no problems with it, healthwise, but if for some reason you are not comfortable leaving hot oatmeal out overnight, you can also refrigerate the jars. The oatmeal won't be quite as well cooked in the morning; it will be a thinner, less creamy oatmeal. But it will still be fine.)
4. The next morning, put all but one of the jars in the refrigerator. Take the cap off one jar and stir up the oatmeal inside. Microwave for 2 to 3 minutes, or until quite hot. Add any milk, raisins, or other mix-ins. Enjoy!
Additional Notes:
• You can also add your raisins, cinnamon, or other mix-ins to the rest of the jars before putting them away in the refrigerator. Then all you have to do is grab one and go on your way out the door.

From: http://www.thekitchn.com/