From our friends at Cali-Blaze...
White Runtz is already a direct cross of Gelato and Zkittlez. However, some breeders and cultivators cross White Runtz back with Gelato (or specific cuts like Gelato 33) to enhance the strain's sweet, creamy vanilla flavors and dense resin production. The flavor contains a heavy dessert profile blending sugary candies and berries with a rich, creamy, and sometimes gassy Gelato exhale.