Shop › Croissant Sourdough Round Loaf Croissant Sourdough Round Loaf $15.00 Made with King Arthur organic bread flour, sourdough starter, spring water, salt and, shredded frozen butter. Frequency: One time purchase $15.00 Subscribe Save 20% Sale Price: $12.00 Original Price: $15.00 Every month • For 3 payments Add to Cart Added! Made with King Arthur organic bread flour, sourdough starter, spring water, salt and, shredded frozen butter.