Put the ingredients, except the blueberries & lemon zest, in a blender and process until you get a thick batter. Add more water or milk if it’s too thick. If time allows, rest is for 10 minutes.
Lightly oil and heat a pancake pan.
Mix the blueberries and lemon zest into the batter, then add 3-4 dollops of batter to the pan, letting them spread out into circles. Use a mold if you want perfect circles or other motives.
Cook for a minute or so over medium heat, until the surface has set, then flip them over. The blueberries will burst and caramelize.
Cook for about 30 seconds, then transfer them to a plate.
Clean the pan with a kitchen towel and make more pancakes from the remaining batter.
Serve the pancakes at room temperature with maple syrup or blueberry compote.