In a mixing bowl, combine the rolled oats, almond milk, and chia seeds. Stir well to make sure the oats and chia seeds are well distributed.
Add the maple syrup, ground cinnamon, ground ginger, ground cardamom, ground cloves, black pepper, and vanilla extract to the bowl. Mix until all the spices are evenly incorporated.
Cover the bowl or transfer the mixture into individual mason jars. Seal tightly.
Refrigerate the oats overnight (or for at least 6 hours), allowing them to absorb the liquid and soften.
The next morning, give the oats a good stir. If desired, add a splash of more almond milk to achieve your preferred creaminess.
Serve topped with fresh fruit, nuts, or seeds for added texture and flavor.
Notes
Feel free to customize with your favorite fruits and nuts.