1. Combine the flour, baking powder, baking soda, and flaxseeds, if using, in a mixing bowl. Make a well in the center and pour in the yogurt and milk. Stir with a whisk until the batter is just smooth; it should have an easy-to-pour consistency, but not too thin. Add more milk as needed. Don’t overbeat.
2. Heat a nonstick griddle or a large nonstick skillet that has been lightly coated with some of the margarine. Ladle on the batter to form 3- to 4-inch pancakes. Cook on both sides over medium heat until golden brown. Serve hot with maple syrup.
Multigrain: Substitute 1/2 to 3/4 cup of the flour with another type of flour such as spelt, kamut, buckwheat, cornmeal, or rye, or use a combination of two different types of flour equaling 1/2 to 3/4 cup.
Fruity pancakes: Add a cup or so of thinly sliced fruits--one kind or a combination--to the batter. Try pears, peaches, nectarines, strawberries, wild blueberries, or other berries.
Cinnamon-apple pancakes: Add 1 heaping cup very thinly sliced, peeled apple (any soft cooking variety such as Cortland, McIntosh, or Golden Delicious) and ground cinnamon to taste to the batter.
Banana-nut: Add 1 medium thinly sliced banana, 1/4 to 1/2 cup finely chopped walnuts or pecans, and a pinch of ground nutmeg to the batter.