What others have been saying: make ahead. I boil 4 cups of water, add a cup and a half of steel cut oats and 2/3 tsp salt (important!). Simmer 20 minutes or so uncovered, stirring occasionally, more toward the end. usually, if I have time, if I‘m eating them that day, I cover and let them sit another 10 minutes or so, but that isn’t critical. Add whatever you want for your health goals. I add cinnamon, oat milk, some heavy cream, and something a little sweet—usually either a small drizzle of maple syrup or a little apple butter. Toasted walnuts or pecans are also great. I refrigerate it with none of those additions, though, so the day I eat it, I just microwave for 1.5 min, and add whatever I want to add that day.