Preheat oven to 375 degrees F. Line a muffin pan with paper cupcake liners.
Place the melted vegan buttery spread and sugars in a mixing bowl and mix together.
Add the flour, baking soda, salt, cinnamon, water, vanilla, and vinegar and mix with an electric mixer on low speed.
Fill each muffin cup about two thirds full with batter.
Bake at 375 degrees F for about 20-22 minutes, until cupcakes have risen and are golden brown.
Let the cupcakes fully cool before frosting them.
Make the Cinnamon Frosting:
Whip the vegan buttery spread on medium speed. Add half of the powdered sugar and one tablespoon of water and continue to mix together.
Add the rest of the powdered sugar and the cinnamon and mix on low speed. Add a bit more water as needed until the frosting reaches the consistency you desire.
You can spread the frosting on these, or pipe it on. To pipe it on, fit a disposable piping bag with a 1M tip. Spoon the frosting into the bag and twist the top of the bag tightly.
Hold the piping bag straight up over the middle of the cupcake, squeeze the bag, and make a clockwise spiral until you reach the edge of the cupcake. Repeat with the remaining cupcakes.
Notes
Store leftover cupcakes in an airtight container. They should stay fresh for about 4 days.You can freeze these if you like. Wrap them separately, and store in the freezer for up to 3 months.