Mix dry ingredients and wet ingredients separately. Combine bowls. Adjust the thickness of the batter by adding a little water or a little flour if necessary. It will be thick and lumpy, but should be thin enough so that when you ladel it on to the griddle, it oozes into a disk about 1/4" thick.
Fry on griddle set to 350°F. It isn't necessary to butter the griddle, but doing so will give a slightly crispy, buttery edge. Fry one side until bubbles develop. Then flip once and fry until ready.
Amaranth flour is sold by Bob's Red Mill. The banana taste is fairly mild, but still off-putting to some. These pancakes have a ton of flavor and are fantastic eaten plain. They're not universally popular, but the people who like them tend to really like them.
The above recipe serves about six people. It can be cut in half if desired.