Reduced Sugar Watermelon Jelly & 1st Time Using Weck Jars (With Cooking Video)

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This version of homemade Watermelon Jelly has a reduced amount of sugar, and also uses the low-sugar pectin. The flavor is unmatched!

To Make this Jelly, You Will Need:

Watch how to Make Reduced Sugar Watermelon Jelly:

How to Juice Your Watermelon

To make this jelly, you will first need watermelon juice. You can read how to do this in the post for the Traditional Watermelon Jelly.

From a Reader:

Reminds me of watermelon jolly ranchers. The watermelon juice to sugar ratio was spot on. I’m so grateful for stumbling across this recipe. It’s definitely a keeper for next year’s watermelon harvest. Yummy!!


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Did You Make This Recipe? I would love for you to rate it in the recipe card! I would love to hear your thoughts!

Yield: about 3 half pints

Reduced Sugar Watermelon Jelly

Reduced Sugar Watermelon Jelly

A delicious reduced sugar Watermelon Jelly that is slam packed with flavor!

Prep Time 15 minutes
Cook Time 15 minutes
Additional Time 1 day
Total Time 1 day 30 minutes


  • 2 cups watermelon juice
  • 3 1/2 c sugar
  • 1/2 c bottled lemon juice
  • 1 pouch (1.75 oz.) reduced/low sugar pectin


  1. Combine the watermelon juice, lemon juice, and pectin in a large pot.
  2. Whisk the pectin in and bring the mixture to a rolling boil over medium high heat.
  3. Stir in the sugar.
  4. Bring the mixture to a boil, stirring continually. Boil 2 minutes.
  5. Remove it from the heat.
  6. Test to make sure the jelly is set (as seen in the video.) If the jelly is set, jar as below. If it is still runny, return it to the heat and boil for another minute. Test again.
  7. Ladle the jelly into hot, half-pint jars. Leave 1/4 inch head space.
  8. Wipe the rims of the jar with a damp rag that has been dipped in white vinegar. This ensures that there is no residue, and your lids can seal properly.
  9. Close with lids and rings.
  10. Process the jars in a hot water bath canner or steam canner for 10 minutes.
  11. Allow the jars to cool in a draft-free location for 12-24 hours.
  12. Remove the rings, test the seals and label the jars.
  13. Enjoy!

Nutrition Information:



Serving Size:

1 Tb

Amount Per Serving: Calories: 65Total Fat: 0gSaturated Fat: 0gTrans Fat: 0gUnsaturated Fat: 0gCholesterol: 0mgSodium: 6mgCarbohydrates: 17gFiber: 0gSugar: 16gProtein: 0g

Nutritional Disclaimer: Nutritional data is provided as a courtesy and estimated by a service called Nutritionix. That is a web-based nutritional calculator and is not guaranteed to be accurate. If the nutritional information is vital to you please verify it using your favorite trusted source.

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3 thoughts on “Reduced Sugar Watermelon Jelly & 1st Time Using Weck Jars (With Cooking Video)”

    • Thank you :) I bought it about 10 years ago when we lived in Alaska at a store called Fred Meyers. It is “Rival” brand, but I think it was a limited edition, as I haven’t seen it anywhere since.


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