Preheat oven to 180 degrees. Line a 12 cup muffin pan and set aside.
Combine the soy milk and vinegar in a big bowl and set aside for five minutes to curdle.
Add the beetroot puree, sugar, vanilla and oil and whisk well till nicely combined.
Sift all the dry ingredients into the wet ingredients and whisk well till all moist. Divide into the prepared muffin tin.
Bake for 20 to 22 minutes till done. Cool completely.