Place all ingredients in a blender and puree until smooth. Refrigerate for 1 hour to overnight.
Heat a crepe or saute pan over medium-low heat and grease with butter. Pour in 2 tablespoons of the batter and swirl around the pan to completely coat the bottom evenly.
Cook for 1 minute, using a spatula gently flip over, and continue to cook another 30 seconds, or until just starting to become golden.
Fill with desired accompaniment* and fold over the edges to enclose.