Blend the ingredients (except the butter). You can use a Magic Bullet that makes smoothie drinks if you have one.
Let rest for at least 20 minutes.
Coat the pan with butter and pour in batter.
Bake in oven at 350°F/180°C until the pancakes are crispy.
For syrup: add maple syrup and a little blueberry juice to make a jammy blueberry syrup. Zhugh with blueberries.
Notes
I find frozen wild blueberries work very well for this recipes and other breakfast-y pancakes. They are uniform in size and give the right amount of juice.