Order menu › Blackberry Rhubarb Jam Blackberry Rhubarb Jam from $4.00 A better blend not found anywhere, traditional, yet with spices giving it a hint of the Carribean, 4 or 8 oz. Size: Select Size 4 OZ 8 OZ Quantity: Add To Cart Added! A better blend not found anywhere, traditional, yet with spices giving it a hint of the Carribean, 4 or 8 oz.