Lemon Blueberry Loaf (Super Moist With Big Flavor)

Name: Lemon Blueberry Loaf (Super Moist With Big Flavor)
Prep time: 15 min
Cook time: 1 h
Total time: 1 h 15 min
Cuisine: American
Ingredients: 1 1/2 cups all-purpose flour, Note 1; 2 teaspoon baking powder; 1/2 teaspoon salt; 1 cup sour cream (or plain or Greek yoghurt); 1 cup sugar; 3 large eggs; 1 tablespoon lemon zest ((from 1 large lemon)); 1/2 teaspoon vanilla extract; 1/2 cup vegetable or canola oil; 1 1/2 cups fresh blueberries (or frozen), dusted in 1 tablespoon flour (flour will prevent them from sinking to bottom of the pan); juice of 1 lemon mixed with 2-3 teaspoons sugar; 1/2 cup icing sugar (also called confectioners sugar or powdered sugar); juice from 1/2 lemon; dash of pure vanilla extract; Optional Garnish: Lemon zest to sprinkle on top