Boil the sweetpotato cubes in water for about 10 minutes, or until tender. The time will vary depending on cube size. Drain well and blend into a smooth purée.
Sift the flour, baking powder and salt into a large mixing bowl.
In a separate bowl, whisk together the oat milk, vanilla extract, sweetpotato purée and vegetable oil.
Gently fold the wet ingredients into the dry mixture until combined and smooth, taking care not to overmix.
Lightly grease a large frying pan with a little vegetable oil and place over medium heat.
Add a tablespoon of batter for each pancake and cook for about 3 minutes, or until small bubbles appear on top.
Flip the pancakes and cook for another minute until golden brown.
Serve warm, stacked with your preferred toppings such as maple syrup, fruit or vegan yoghurt.