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How to Make Red Pepper Jelly

This firecracker-red everyday spread is hot, sweet, and totally grandma-chic.

Step #13

Whether it’s lace curtains, water aerobics, or Alan Alda’s best dramatic performance, chances are I’d have something to chat with your grandma about. That includes pepper jelly—an antebellum classic, enjoyed by pearl-wearing grand old dames at country clubs. Draped over cream cheese and slathered on water crackers, great pepper jelly is punchy-hot (not slap-you-in-the-face hot) and devilishly sweet. My pepper jelly, I decided, would be ruby red—the same color as the most famous shoes ever, if you need a visual.

The basic procedure is as follows: chop red peppers and habaneros (red, red, red!), break them down further using the food processor, boil with white vinegar and enough sugar to make Willy Wonka swoon, add pectin, and simmer to the right temperature.

While the vinegar, sugar, and pepper amounts were easy enough to suss out, there was one ingredient I had some trouble with: the pectin. Pectin is a naturally occurring substance in many fruits that acts as a gelling agent. For jellies and jams in which low-pectin fruit or veggies are used, another solution has to come into play—be it a second, higher-pectin ingredient (green apple or citrus peel are common) or commercial pectin (which can be purchased at most supermarkets or online). A bit of research into the various kinds of pectin made me think it was right up there with daylight savings time and the electoral college—things good for the general public that can lead to serious confusion when over-analyzed. The recipe I was working with (appropriately enough, a recipe from my grandmother) called for liquid pectin, so that’s where I started. It took several tests to determine that I was using too much of the stuff—my jelly was way too stiff. (Um, yeah, it sounds obvious now.) Cutting the pectin in half gave me jelly that set perfectly every time and was precisely the consistency I was after.

About the Author: Kate Hartke

Kate Hartke lives and breathes books. At America's Test Kitchen, she's an associate editor on the book team. She lives in Somerville and during both her AM and PM commute, you can find her nose buried in a paperback. She also lives for ice cream, her dog, and her husband (though not in that order).

8 Comments

  • Grandpa

    Now this is one of those things my father always talks about when reminiscing about his childhood. In his farm growing up they either had to dry their chilies or make them in to jelly. He claims green pepper jam goes great with fish.. who knows.

  • bethmjohns

    Can you make this with serrano peppers?

  • Kate Hartke
    Kate Hartke

    Beth, I haven’t tried this, but serranos aren’t as hot as habaneros, so your pepper jelly might be on the sweeter side. Let me know how it turns out!

  • michelleheran

    Could this jelly be water bath processed to make it shelf stable? Or would it need pressure canning?

  • rosasmommy

    Would it be possible to use roasted rather than fresh peppers? We have a lot of roasted NM chiles that I would like to try.

  • Kate Hartke
    Kate Hartke

    @Michelle, I’m afraid I don’t know enough about processing to respond to this question. Besides – my jars of RPJ don’t really last that long!

    @Rosasmommy – I think the liquid amounts would need to be tweaked in order to get the jelly to set up right, but you could play around with it. I bet the flavor would be great.

  • angusblack

    Of course you could process this jelly in a water bath to make it shelf stable. It should be good for a year or more.

    I thought the step of squeezing out the juice was odd–aren’t you just throwing away a lot of flavor? I can’t imagine it could amount to much more than 1/4 cup of liquid, and that amount of liquid spread out over 2+ quarts would not affect the jelling in a way that was even noticeable. And if you use gloves for the cutting of the peppers, you definitely want to use them for the squeezing!

  • sophiahenkel

    I make jams an jellies all the time, I never water process them, neither does my mother in law, if the container is clean, and the mixture is hot they are self stable.

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