How to Cook Yummy Xmas Gummies August 5, 2021 by Xmas Gummies. You can have Xmas Gummies using 5 ingredients and 0 steps. Here is how you cook that. Ingredients of Xmas Gummies Prepare 60 ml of cold water. Prepare 30 ml of corn syrup. Prepare 40 g of jell-o. Prepare 6 of gelatin sheets. Prepare 2 of chewable vitamin c tablets. Xmas Gummies step by step