Making Cranberry Jello Salad is a simple process when you follow these steps:

1. Dissolve Jello: In a mixing bowl, add the Jello powder. Pour in 1 cup of boiling water and stir until completely dissolved.
2. Add Cold Water: Mix in 1 cup of cold water and stir well to combine.
3. Incorporate Cranberry Sauce: Add the whole-berry cranberry sauce to the Jello mixture. Stir until well combined.
4. Mix in Vegetables and Nuts: Add the chopped celery and walnuts (or pecans). Stir to disperse evenly throughout.
5. Add Marshmallows: Fold in the mini marshmallows, which add a delightful sweetness and texture.
6. Chill the Mixture: Pour the mixture into a mold or a serving bowl. Cover and refrigerate for at least 2 hours, or until completely set.
7. Add Whipped Topping: Once the salad has set, gently fold in the whipped topping until evenly distributed.
8. Serve: Carefully run a knife around the edge of the mold if using one, and invert to release. Slice and serve in individual portions.

By following these easy steps, you will create an incredible Cranberry Jello Salad that is sure to impress your family and friends.