To make crepe batter in a flash, add the following ingredients to your blender: 2 cups all-purpose flour, 3 whole eggs, 2 cups milk, 4 tablespoons neutral-flavored oil and a pinch of salt. Start blending slowly, then gradually accelerate until the mixture becomes smooth and consistent throughout. Let rest for 1 hour or use immediately, if you're pressed for time. You can also employ this method to make pancake batter.