Blueberry Lemon Cake

Ingredients for Blueberry Cake:
- 2 large eggs
- 1 cup (210 grams) granulated sugar
- 1 cup sour cream
- 1/2 cup light olive oil or vegetable oil
- 1 tsp vanilla extract
- 1/4 tsp salt
- 2 cups (260 grams) all-purpose flour
- 2 tsp baking powder
- 1 medium lemon (zest and juice), divided
- 1/2 Tbsp corn starch
- 16 oz (450g) fresh* blueberries
- Powdered sugar to dust the top, optional