This recipe is from the book Vegan Brunch by Isa Chandra Moskowitz. Feel free to sub all quinoa flour for the corn flour or vice-versa if you don't have both on hand. I have also used chickpea flour. Whatever you do, just don't use cornmeal; it's much coarser than corn flour.
Ardyce Piehl of Wisconsin Dells, Wisconsin relates, "These moist muffins are chock-full of blueberries. I keep frozen berries on hand-it's so convenient to be able to fold them frozen into the muffin batter."