Ruby red grapefruit and sugar is all you need to make a slightly bitter, sweet, and tangy marmalade. Try this on toast or, for a twist, use it in any recipe calling requiring orange jam or marmalade. I have used it on meatballs and chicken wings with delicious results. Make sure you use organic grapefruit to ensure an edible zest.

Gallery

Recipe Summary

prep:
20 mins
cook:
35 mins
additional:
1 day
total:
1 day
Servings:
10
Yield:
2 5-ounce jars
Advertisement

Ingredients

10
Original recipe yields 10 servings
The ingredient list now reflects the servings specified
Ingredient Checklist

Directions

Instructions Checklist
  • Inspect two 5-ounce jars for cracks and rings for rust, discarding any defective ones. Immerse in simmering water until marmalade is ready. Wash new, unused lids and rings in warm soapy water.

    Advertisement
  • Thoroughly wash and dry the grapefruits. Run a zester around 2 grapefruits to produce ribbons of zest. Set aside. Cut away thin strips of peel from the other two grapefruits with a sharp paring knife.

  • Peel off all remaining outer white parts of the fruit and discard. Cut the grapefruits into wheels. Remove any seeds.

  • Put grapefruit wheels and zest strips into a non-reactive saucepan. Add sugar and stir well to cover fruit. Heat over medium-high heat until bubbling, mixing constantly. Smash the heated fruit until it liquefies. Reduce heat to low and cook over a steady boil, stirring often. Remove and discard any persistent white froth that won't disappear after being stirred. Continue to cook for about 10 minutes until marmalade begins to coat the back of a spoon.

  • Add zest ribbons and cook for 5 minutes more. Place a small amount of marmalade on a plate and put it in the freezer. Test the consistency after 3 minutes.

  • Remove the marmalade from the heat when the freezer sample meets your desired consistency.

  • Pack grapefruit jam into hot, sterilized jars, filling to within 1/4 inch of the top. Run a clean knife or thin spatula around the insides of the jars to remove any air bubbles. Wipe rims with a moist paper towel to remove any residue. Top with lids and screw rings on tightly.

  • Place a rack in the bottom of a large stockpot and fill halfway with water. Bring to a boil and lower jars 2 inches apart into the boiling water using a holder. Pour in more boiling water to cover jars by at least 1 inch. Bring to a rolling boil, cover, and process for 10 minutes.

  • Remove the jars from the stockpot and let rest, several inches apart, for 24 hours. Press the center of each lid with a finger to ensure the lid does not move up or down. Remove the rings for storage and store in a cool, dark area.

Cook's Notes:

The white pith on the grapefruit strips will help solidify the marmalade as they contain vital pectin. They will also give the marmalade its signature slight bitterness.

If not using the water-bath method, allow marmalade to cool completely then store in refrigerator.

Nutrition Facts

276 calories; protein 0.8g 2% DV; carbohydrates 71.1g 23% DV; fat 0.1g; cholesterolmg; sodiummg. Full Nutrition

Reviews (3)

Read More Reviews

Most helpful positive review

Rating: 4 stars
02/20/2020
The instructions tell you to prepare (2) 5 oz jars. Actually this recipe yielded (4+) 8 oz jars. The footnote about the leaving the white pith on the zest strips should be in the body of the printed directions (I would have left more on the strips). Mine did thicken fine. Turned out very good! Will make another batch soon. Read More
(1)
4 Ratings
  • 5 star values: 3
  • 4 star values: 1
  • 3 star values: 0
  • 2 star values: 0
  • 1 star values: 0
Rating: 4 stars
02/19/2020
The instructions tell you to prepare (2) 5 oz jars. Actually this recipe yielded (4+) 8 oz jars. The footnote about the leaving the white pith on the zest strips should be in the body of the printed directions (I would have left more on the strips). Mine did thicken fine. Turned out very good! Will make another batch soon. Read More
(1)
Rating: 5 stars
02/09/2020
I followed the recipe pretty closely. I wasn’t sure how much of the peel to add, but it turned out nicely. I did use an immersion blender to mash it. I’m happy with the results. Did a second batch and added jalapeños and cranberries that I needed to use up. Read More
Rating: 5 stars
04/07/2020
No Changes, made just as recipe called for. Fantastic! Read More
Advertisement