Drop single teaspoons of the batter onto a lightly greased baking sheet about 1/2 inch apart. (fidouniverse.com)
For a single teaspoon, this may seem high, but to put it in perspective, this is just one ingredient added to an entire recipe. (nielsenmassey.com)
It seems like the single teaspoon of baking soda (equivalent to 4 tsp baking powder) should provide sufficient leavening all by itself with no baking powder. (smittenkitchen.com)