These pancakes are not only delicious, they’re also relatively low in fat. The trick is to separate the egg, then whip the egg white and fold it back into the batter, giving the cakes a tremendous lift and a wonderfully fluffy texture.
In a large bowl, combine flour, salt, and baking soda. Add buttermilk, vanilla, and yolk; stir until barely mixed.
Beat egg white until stiff and fold into batter.
Drop batter by spoonfuls onto a hot greased griddle or skillet. Sprinkle a few blueberries over each pancake and cook until bubbles form, 3–5 minutes. Flip cakes and brown other side, 2–3 minutes. Serve warm.