In a medium saucepan, combine the frozen cherries, maple syrup, cinnamon, nutmeg, and a pinch of salt. Cook over medium heat, stirring occasionally, until the cherries are heated through and the mixture has thickened into a syrupy sauce. This should take about 10-15 minutes. Once done, remove from the heat and let it cool completely.

To assemble the basic overnight oats, combine oats with milk or yogurt in a large bowl or glass jar. Stir well, cover and refrigerate overnight.