2 c. Bisquick mix
1 egg
1/2 c. oil
1 1/3 c. club soda

Beat egg, oil and Bisquick, then add soda. Mix until smooth. Cook on lightly greased hot griddle turning once. You can also use a boxed pancake mix and substitute the soda for the milk. The batter due to the effervescent soda cannot be saved. So use all the batter, cook, freeze and pop in toaster later as needed.