Preheat waffle maker.
Place oats, baking powder, salt and cinnamon in the Thermomix bowl. Blend 1 min/speed 8. Scrape bowl and repeat.
Add eggs, maple syrup and kefir. Combine 1 min/speed 8. Add butter and continue 1 min/speed 8.
Pour batter into waffle maker. Cook until starting to brown.
Serve with butter and maple syrup or any of your favourite toppings.