In a medium bowl, sift together all dry ingredients. Add remaining ingredients (except for blueberries) and mix until well combined.
Allow the batter to rest for 5-10 minutes. Preheat Poffertjes maker according to manufacturer's instructions and spray well with non-stick spray.
Spoon batter 2/3 of the way up to each hole and drop a blueberry into the centre when the underside is golden , flip and cook the other side. Serve immediately.
Trending This Week