There are several types of oats—steel cut, quick, instant, rolled, and others. They’re processed differently, and as a result, they have varying cook times, textures, and nutrition contents.

Also called Irish oatmeal, whole oat kernels are cut into two or three pieces with steel disks. Because these oats are the least processed, they contain the highest amount of fiber. Steel-cut oats ...

In a saucepan over medium heat, melt butter. Add oats and stir to coat. Toast oats, swirling pan or stirring often, until fragrant. Add water, then milk (it will bubble up), and bring to a gentle ...