Preheat oven to 375 degrees
Prepare a baking sheet with parchment paper
To a food processor or blender, combine egg white, yogurt, lemon extract & salt and combine well
Add sugar to mixture & combine
Add remaining ingredients (except blueberries) and mix well
Add batter to a bowl, add blueberries gently folding them in
Using an ice cream scoop, add batter to the baking sheet
Bake 12-14 minutes until edges are slightly brown
Remove from oven, allow to cool 5 minutes before removing to cool fully on a wire rack