Lemon Blueberry Cake

• 11 baking with vegetable oil (pan)
• 3 blueberries
• 2 lemons
• 2 egg whites
• 1 egg
• 300 gr sugar
• 250 gr unbleached pastry flour
• 160 ml low fat butter milk
• 60 ml squeezed lemon juice (fresh)
• 60 ml canola oil