Mixed Berry Crumb Cake

Name: Mixed Berry Crumb Cake
Cuisine: European
Ingredients: 1; 2; 3; 1 piece; 1/4 cup; unsalted butter; 1/4 cup; granulated sugar; 1/4 cup; brown sugar, light or dark; 1/2 tsp.; Cinnamon-Vanilla Seasoning Blend; 1/8 tsp.; coarse kosher salt; 1 1/4 cup; cake flour; 1/2 cup; raspberry perserves; 1 pint; blueberries; 1 tbsp.; unsalted butter, room temperature; 3/4 cup; unsalted butter; 2 1/2 cups; cake flour; 1/2 tsp.; baking soda; 1/2 tsp.; coarse kosher salt