Preheat your oven to 350 and lightly spray a muffin tin with cooking oil, or line with paper liners.
Add all ingredients for muffins to a blender and blend on medium low speed until mostly smooth.
Use a spoon to fill each muffin cup 1/4 of the way full.
Add sugar and cinnamon to a bowl and use a spoon to mix. Sprinkle a layer of the cinnamon sugar mixture on each muffin. Spoon the rest of the muffin batter on top of the cinnamon sugar layer. Sprinkle with additional cinnamon sugar if desired.
Bake for 16-18 minutes until an inserted toothpick comes out mostly dry. Let cool for at least 5 minutes before removing from tin.
Enjoy warmed, topped with vegan butter if desired.