I admit it. The only reason I made Grapefruit-Rosemary Jelly is because after spending a day chopping and supreming and canning a batch of Orange-Grapefruit-Ginger Marmalade, I’d had enough of citrus preserving for a while. I just wanted something simple and quick to go through my last basket of grapefruits from the garden, and this jelly was it.
In my kitchen, grapefruit and rosemary go hand in hand. (You might remember this complementary combo from my Grapefruit-Rosemary Bread recipe.) I find that rosemary tames the tartness of grapefruit without being too floral. You get all that wonderful grapefruit flavor with none of its bitterness or sourness… just yummy goodness.
If you tend to shy away from making jelly because it usually calls for an obscene amount of sugar, this is your type of jelly. None of this 5-cups-sugar-to-5-cups-juice business (I feel myself bouncing off the walls just writing that!). By using low-sugar pectin, you can cut out half the sugar and still have a perfectly preserved jiggly jelly.
Makes 2 pints
4 to 5 cups grapefruit juice
2 large sprigs rosemary
2 cups sugar
3 tablespoons (or 1 packet) low-sugar powdered pectin (I use Ball RealFruit Low or No-Sugar Needed Pectin)
You can cheat and use bottled juice, but this is a good way to use up grapefruits that might be a little past their prime.
Extract 4 to 5 cups of fresh juice from your grapefruits. I love love LOVE my juicer for this!
In a medium saucepan, stir together the grapefruit juice, rosemary sprigs, and powdered pectin, and bring the ingredients to a boil. Keep the mixture at a full rolling boil until the rosemary is well infused and the syrup is slightly reduced and thickened, about 20 minutes.
Stir in the sugar and boil hard for a couple more minutes. Remove from heat.
Strain the mixture through a fine mesh sieve or a jelly bag. (In a pinch, a couple layers of cheesecloth also works well.)
Ladle the jelly into hot, clean jars and process in a boiling water bath for 10 minutes (adjust the time as needed for your altitude).
Spoon the jelly over pork chops as a tasty tart glaze, or spread it over some good old-fashioned peanut butter, my favorite! It’s like having a grown-up PB&J sandwich.
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