In a blender, place the milk, eggs, pumpkin, oats, baking powder, cinnamon, and salt. Blend until smooth. Place the liquid ingredients first for a better blend. The batter will be thick, do not add liquid to adjust.
Cook the pancakes:
Heat a non-stick pan over medium heat. Once hot, grease it with oil or butter. Immediately pour ¼ cup of batter per pancake. Cook the first side for 2 minutes. When the edges begin to look defined and bubbles form, flip them over and cook the other side for 2 more minutes. Don't press them down with a spatula; just let them fully cook.
Remove the pancakes from the pan and cook the rest. Serve them warm with your favorite syrup and toppings.
Storage:
Refrigerate cooled pancakes in an airtight container or zip bag for up to 3 days or freeze them for up to 3 months. Reheat them in the microwave, in 30-second increments, or toast them.
Notes
If using quick-cooking (instant) oats, you'll need to add 1 to 2 tablespoons more into the blender.
Use the right baking powder: Since pancake batter naturally has a mild, neutral flavor, it's important to use aluminum-free baking powder. The metallic flavor will ruin the taste, especially in fluffy pancake recipes that call for 2 or more teaspoons. Trust me on this one.