Ingredients for Topping:
1 c. Blueberry Balsamic
1 c. fresh blueberries
Preheat oven to 375F and grease 13x9x2 inch baking pan.
Beat egg yolks with 1/2 cup sugar with electric mixer until pale yellow and thick. Reduce speed and add Lemon Olive Oil and lemon zest.
Gently stir in flour a little at a time until combined.
In another bowl with electric mixer, beat egg whites with 1/4 tsp salt until foamy and add 1/4 cup sugar a little at a time until soft peaks form.
Thoroughly fold beaten egg whites into yolk/flour mixture.
Pour into pan and bake until golden brown and puffy (approx. 45 minutes).
In a saucepan put one cup of Blueberry Balsamic over medium heat. Reduce balsamic down until thick and add one cup of fresh blueberries. Pour Blueberry Balsamic sauce over cake and serve.