Preheat oven to 350°F (175°C). Line a muffin tin with paper liners.
In a large bowl, combine mashed sweet potato, dates, almond milk, coconut oil, and vanilla extract.
In another bowl, whisk together flour, baking powder, baking soda, salt, and cinnamon.
Add dry ingredients to wet ingredients and mix until just combined.
Divide batter evenly among muffin cups.
Bake for 25 minutes or until a toothpick inserted into the center comes out clean.
Let cool in the tin for 10 minutes, then transfer to a wire rack to cool completely.