2 cups minus 2 tablespoons (8 1/2 ounces) cake flour
1 ⅔ cups (8 1/2 ounces) bread flour
1 ¼ teaspoons baking soda

1 ½ teaspoons baking powder
1 ½ teaspoons coarse salt
2 ½ sticks (1 1/4 cups) unsalted butter
1 ¼ cups (10 ounces) light brown sugar
1 cup plus 2 tablespoons (8 ounces) granulated sugar
2 large eggs
2 teaspoons natural vanilla extract
1 ¼ pounds bittersweet chocolate chips (at least 60 percent cacao content)
6oz California Giant Blueberries
Sea salt flakes