2 bananas, mashed
5 cups water, divided
1 cup steel cut oats
1/4 cup raisins (optional)
1 teaspoon cinnamon
1 teaspoon vanilla extract
1. Put bananas into a blender with 1 cup water; puree and pour into a slow cooker. Add remaining water, oats, raisins, cinnamon, and vanilla extract.
2. Cook on Medium, stirring every 30 minutes, for 3 hours.