• 1 1/2 c. all-purpose flour
• 1 Tbsp. sugar
• 2 tsp baking pwdr
• 1/2 tsp baking soda
• 1/4 tsp salt
• 1/2 c. buttermilk
• 1/2 c. water
• 3 Tbsp. vegetable oil
• 1 lrg egg yolk
• 3 lrg egg whites room temperature
•     cooking spray
• 1 c. blueberries fresh or possibly frzn
• 3/4 c. maple syrup

Directions

1. Combine first 5 ingredients in a medium bowl; stir well. Combine buttermilk, water, oil, and egg yolk; stir well. Add in to dry ingredients, stirring just till moist.
2. Beat egg whites in a bowl at high speed of a mixer till stiff peaks form; gently fold into batter.
3. Preheat waffle iron, and coat with cooking spray. Spoon about 1/3 c. of batter per 4-inch waffle onto warm waffle iron, spreading batter to edges. Spoon about 1 tbsp blueberries proportionately over batter. Cook 5-6 min or possibly till steaming stops; repeat procedure with remaining batter and blueberries. Serve hot with maple syrup.
4. 1B, 2FA, 130C