Slow Cooker Steel Cut Oatmeal with Bananas

milk

very ripe bananas, mashed or pureed until smooth (I used frozen ones I had in my freezer)

brown sugar

cinnamon

vanilla

salt

steel cut oats (do not substitute quick cooking or rolled oats as the consistency of the oatmeal will be off)

Water (for water bath)

Toasted, chopped pecans or walnuts, optional

Banana slices, optional

Brown sugar, optional