Before bed, place 1 cup of oats in a bowl. Add warm water, balsamic vinegar, stir, cover and leave on counter overnight. Upon waking, strain and rinse the oats. Place them in a pan and cook with ½ the amount of water called for.
Serve oats with sautéed mushrooms, onion, and thyme for a savory flavor or molasses, nuts, and berries for a sweet flavor.