How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Rainbow Jello?

You need 8 ingredients. The key ingredients include: 4 small Jell-O (orange, green, yellow and red), 1 c. hot water (for each box Jell-O), 1/2 c. cold water (for each box Jell-O), 2 envelopes Knox gelatine, and more.

Is Rainbow Jello suitable as general?

Yes, Rainbow Jello falls under the General category and is a great choice for this type of meal.

How do I store leftover Rainbow Jello?

Store leftovers in an airtight container in the refrigerator for up to 3–4 days. Reheat gently before serving.

Rainbow Jello Recipe

Name: Rainbow Jello
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 4 small Jell-O (orange, green, yellow and red); 1 c. hot water (for each box Jell-O); 1/2 c. cold water (for each box Jell-O); 2 envelopes Knox gelatine; 1 c. sugar; 1 c. water; 2 c. sour cream; 1 pt. half and half

Try this homemade Rainbow Jello recipe the whole family will love. Made with O, hot water, cold water and gelatine. Easy step-by-step instructions inclu…

This Rainbow Jello relies on simple, everyday ingredients such as envelopes knox gelatine, sugar, water and sour cream. It comes together quickly and makes 4 servings, at about 496 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

It's versatile enough for an easy weeknight dinner yet satisfying enough for guests at the weekend. Serve it with your favorite sides, and keep any leftovers for a quick meal the next day.

Updated Jun 30, 2026

Serves 4 General

Servings: persons

4 small Jell-O (orange, green, yellow and red)
1 c. hot water (for each box Jell-O)
1/2 c. cold water (for each box Jell-O)
2 envelopes Knox gelatine
1 c. sugar
1 c. water
2 c. sour cream
1 pt. half and half

Frequently Asked Questions

Quick Info

Servings
4 servings
Calories
496 kcal
Category
General

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Rainbow Jello

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