1. Combine Dry Ingredients: In a jar or airtight container (a pint-sized Mason jar works perfectly), add the rolled oats, vanilla protein powder, chia seeds, pumpkin pie spice, and a pinch of salt. Stir these dry ingredients together thoroughly with a spoon or fork to ensure they are well combined. This helps prevent clumps of protein powder later on.

2. Add Wet Ingredients: Pour in the milk, pumpkin puree, maple syrup (if using), and vanilla extract into the same container.

3. Mix Everything Together: Stir all the ingredients vigorously until everything is fully incorporated. Make sure there are no dry spots of oats or protein powder clinging to the bottom or sides of the jar. The mixture will look a bit liquidy at this stage, but don’t worry, the chia seeds will work their magic overnight.

4. Seal and Refrigerate: Place a lid tightly on your jar or container. Transfer it to the refrigerator and let it chill for at least 4 hours, but ideally overnight (8 hours), for the best texture and flavor development.

5. Check Consistency and Adjust: The next morning, open the container and give the oats a good stir. They should be thick and creamy. If they are too thick for your liking, add a splash more milk (about 1-2 tablespoons) and stir until you reach your desired consistency.

6. Serve and Enjoy: Spoon the creamy pumpkin pie overnight oats into a bowl or eat directly from the jar. Add any desired toppings before serving.