Grease a 12-cup muffin tin with nonstick cooking spray or butter. In a small bowl, mix together 4 tablespoons wheat bran and 2 tablespoons soy flour and sprinkle it evenly over each of the 12 cups of the muffin pan.
In a larger bowl, whisk together the remaining ingredients until completely blended. Fill each muffin cup only 2/3 of the way with the mix, leaving room for them to rise, and bake for about 20 to 25 minutes, or until tops start to brown. The muffins are done when lightly browned and a wooden toothpick inserted in the center of a muffin comes out clean.
