Blend the dry ingredients. Add the oats, kosher salt, baking powder, and cinnamon to a high-speed blender. Blend until the oats resemble a fine flour.
1 cup old-fashioned oats, ½ teaspoon kosher salt, 1 teaspoon baking powder, ½ teaspoon cinnamon
Make the batter. Add the peeled, cooked sweet potato, spinach, milk, egg, and vanilla extract to the blender. Blend just until a smooth, consistent batter forms.
1 cooked Japanese or white sweet potato, 1 cup fresh spinach, ⅔ cup milk, 1 egg, 2 teaspoons vanilla extract
Cook the pancakes. Heat a large nonstick skillet or griddle over medium heat. Once hot, lightly grease the surface with oil or butter. Use a medium cookie scoop or a small measuring cup to transfer the batter to the skillet. Use the back of the cup or spoon to gently spread the batter into an even circle if needed.
Oil or butter
Flip and finish cooking. Cook for 3–5 minutes, or until the edges appear set and bubbles begin forming on the surface. Carefully flip each pancake and cook for another 2–3 minutes, until golden brown and cooked through.
Cool and serve. Allow the pancakes to cool slightly before serving. Enjoy them plain or topped with fresh fruit, nut butter, yogurt, maple syrup, or a sprinkle of cinnamon.