Grapefruit Jam Recipes

SMALL-BATCH GRAPEFRUIT JAM

Steps:

• Place a saucer in your freezer for the wrinkle test, before you begin.
• Prepare the grapefruit: Cut off the top and bottom of a grapefruit and sit flat on a cutting board. Using a sharp knife and starting from the top, cut off the peel along the sides, working your way around until it is all removed. Turn grapefruit over and remove any remaining peel. You should not have any peel or pith left on the fruit.
• While holding the grapefruit over a large bowl, cut between the membranes of the fruit to remove a grapefruit slice. Continue to remove all the slices and give it a gentle squeeze to remove a bit of the juice. Repeat with all the grapefruits.
• Cook the jam: Add the grapefruit and juice to a large, non-reactive, heavy bottomed pot. Add the sugar and stir well to combine. Bring the mixture to a boil, over high heat, stirring regularly until the sugar dissolves. Once the mixture reaches a steady rolling boil, allow to continue boiling, testing regularly with the "wrinkle test", until it's set. It will take about 10-15 minutes. You can also monitor using a thermometer. The jam will set somewhere around 220° F., but the exact temperature will vary a bit, depending on your altitude, so verify setting with the wrinkle test.
• Ladle jam into small jars. Cover and refrigerate to use in the short term. Jam will keep several months in the fridge. (*As it is not properly "canned", do not store at room temperature).

GRAPEFRUIT MARMALADE

Steps:

• 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.
• 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.

SMALL BATCH GRAPEFRUIT JAM

Steps:

• Start by supreming the grapefruit. Do this by cutting the top and bottom off. Then, working from north pole to south, cut the rind off the fruit (you want to expose the interior surface of the fruit). When rind is entirely removed, use the knife to separate the fruit from the membrane of the fruit.
• Collect the naked fruit sections and their juice in a large bowl. Set any seeds you find aside. Bundle them up in a length of cheesecloth. They'll give the jam an extra hit of pectin.
• Once all the fruit is supremed, pour it into a large, non-reactive pot and add the sugar and the cheesecloth bundle containing the seeds. Stir until the sugar begins to dissolve.
• Turn the heat to high and bring the fruit mixture to a boil. Cook at a bubble, stirring regularly, until the jam reaches 220 degrees and passes the plate/sauce/wrinkle test (remove the pot from the heat source while you're testing to prevent scorching).
• When the jam passes these set tests, pour into prepared jars. Apply lids and rings and process in a boiling water bath for ten minutes.
• When time is up, remove jars from canner and let them cool on a folded kitchen towel. When jars are cool to the touch, remove rings and test seals. Store sealed jars in a cool, dark place. Any unsealed jars should be refrigerated and used first.

GRAPEFRUIT JAM RECIPE

Steps:

• Cut off the tops and bottoms of the grapefruit, and then cut each grapefruit into quarters. Using a sharp knife, cut the fruit from the rind and pith. Then, working over the pot you'll be using to cook the jam, separate the fruit into segments. Use your fingers to gently peel each segment from its surrounding membrane so that you are left with only the fruit. Squeeze the membrane over the pot in order to collect any juices before discarding (or, collect the membrane, pith, and seeds in cheesecloth, bundled and tied at the top, to boil with the jam for some extra natural pectin). Prepare your canning supplies. Bring the temperature of the glass jars up by processing them in hot water for several minutes, and heat a few cups of water in a small saucepan for the lids. Add the sugar to the grapefruit and over high heat, bring the mixture to a boil. Boil hard, stirring constantly, until the mixture reaches the gel stage, about 20 minutes longer. When you reach the gel stage, skim off any foam and ladle the hot jam into the hot jars, leaving 1/4″ headspace. Place the lids and bands on top, screwing on the bands just until fingertip-tight. Place the full jars back into the boiling water and process 10 minutes. Remove from the water and place the jars on a towel. Let the jars cool. The seals should suck down (you'll hear a popping noise as they do). Makes about 4 eight-ounce jars.

HOMEMADE ORANGE/GRAPEFRUIT JAM

Steps:

• If you want to have thin orange zest you have to soak zest from one orange 5 days changing water every 12 hours. After 5 days, cut the zest into thin slices.
• Squeeze out juice from orange and grapefruit. It should be aboput 2 liters of juice.
• Put orange zest, sugar and juice into pot and start to cook. After boils, cook on moderate fire about 15 minutes. In the meantime put glass-bottles into oven on 100°C
• After 15 minutes, add pectin in amount necessary for making jelly. Stir well 1-2 minutes making sure all pectin is dissolved.
• Than start to fill in the glass- bottles. Leave 1 inch space between jam and cover. Leave to cool it slowly.