Preheat the oven to 350°F (180°C). Grease a muffin tin with nonstick spray.
2. Step
Add the milk, applesauce, nut butter, maple syrup, vanilla, and eggs to a medium bowl and whisk until combined.
3. Step
Add the oats, baking powder, salt, and cinnamon. Stir quickly to make sure everything is well-hydrated.
4. Step
Divide the batter between the prepared muffin cups, then add your toppings of choice. Bake for 20–25 minutes or until the centers of the muffins spring back when gently pressed.
5. Step
The oatmeal cups can be enjoyed immediately, or cooled and frozen in an airtight container for up to 2 months. To reheat, microwave for 2 minutes.
