Blueberry and Banana Brown Betty

Name: Blueberry and Banana Brown Betty
Ingredients: 5 large egg yolks; 1/2 cup granulated sugar; Pinch of salt; 1 pint half-and-half; 1 vanilla bean, split; One 3-inch cinnamon stick; 2 cups fresh brioche crumbs; 1/2 cup packed dark brown sugar; 4 tablespoons salted butter, melted; 1 teaspoon ground cinnamon; 4 ripe bananas, sliced 1/4 inch thick; 1 pint blueberries