Adjust the batter by adding more water if needed. (celiacfamily.com)
Combine all ingredients in a high speed blender and pulse until smooth adding more water as necessary to thin if necessary. (gourmandeinthekitchen.com)
Add 2 tablespoons of water and blend, then add more water by the spoonful until the dough just begins to come together. (spicesandspatulas.com)