White chocolate blondie

Unbleached enriched wheat flour (wheat, niacin, reduced iron, thiamin mononitrate, riboflavin, folic acid), white chocolate (sugar, cocoa butter, whole milk powder, nonfat dry milk, milkfat, soy lecithin, natural vanilla extract), granulated sugar, light brown sugar, whole eggs, butter, invert sugar, baking powder, vanilla extract, sea salt.