Apple Jelly

While some sources say to National Center for Food Preservation cook the apple jelly to 220ºF (104ºC), every time I've made this, it jelled at around 230ºF (110ºC). So it’s best to use a thermometer but also to test your jelly by dropping a dab on a chilled plate, putting it in the freezer for a few minutes, then checking to see if the mixture has jelled by nudging it and seeing if it mounds and wrinkles, as shown in the post. If you don’t have a candy thermometer, you can use the "nudge" method to test your jelly. One pound (450g) of apples cooked will yield about 1 cup (250ml) strained juice from the cooked apples. So if you have fewer apples, or you get a different yield (since all apples are different), you can use that as a guideline and add 3/4 cup (150g) sugar and 1 1/2 teaspoons of lemon juice per cup of strained apple juice. You can easily halve this recipe, too. Note that in step #3 depending on the size of your strainer or colander, you may need to use two, as I do. One tip is when putting the apples in the strainers if you can't get them all in, after filling them up, let the mixture sit 5 to 10 minutes; it'll settle down and compress, and you should be able to add the rest after that.

Servings 6 jars, 1 cup (250ml) each

8 pounds (3.75kg) apples
10 cups (2.25L) water
6 cups (1,2kg) sugar
1/4 cup (60ml) freshly squeezed lemon juice
2 teaspoons Calvados, brandy, or Cognac

Rinse the apples and cut them coarsely into chunks, then put them and the cores and seeds, into a very large stockpot.
Add the water, cover, and bring to a boil. When bubbling, reduce the heat a bit, leave the lid askew, and cook for 20 to 30 minutes, until the apples are tender and cooked through.
Line a mesh colander with a piece of muslin cloth or a few folds of cheesecloth (or use a jelly bag and stand) and set it over a deep bowl, then ladle the apples and the liquid into the colanders. (I use two lined colanders since it was quite a bit of apples.)
Let stand or at least 3 hours (but you'll get more juice if you let the apples drain around ~8 hours), and during that time, no matter how tempting it looks,
do not press down
at any time on the apples to extract more juice or the jelly will get cloudy.
The next day, measure out the juice. You should have about 8 cups (2L) but may get a little more. Pour the juice into a large, non-reactive pot fitted with a candy thermometer, add the sugar and lemon juice, and bring to a boil. During cooking, as any white foam forms on the surface while the jelly is cooking, gently skim it off with a ladle. (See Note at the end of the recipe for some idea about repurposing the apples and the foam.)
Cook until the temperature reaches 220ºF (104ºC). At that point, turn off the heat and begin testing the jelly on a chilled plate in the freezer, using the method mentioned in the headnote. When it wrinkles and holds its shape, it’s done. If not, continue to cook and re-test it at intervals. This batch set at 230ºF (110ºC).
Remove from heat, stir in the liquor, and ladle into clean jars, then cap tightly.

Notes

Storage: I don’t preserve my jelly or jams in heat-treated jars because I eat them quickly, but store mine in the refrigerator where they’ll keep for several months. If you wish to preserve them, you can find instructions for canning at the University of Georgia website.

Notes: The cooked apples can be passed through a food mill and used as applesauce, or for Chewy Oatmeal Raisin Cookies, Nonfat Gingersnaps, or my favorite Granola recipe.

Any foam scraped off the top of the jelly while cooking can be refrigerated or frozen, and added to your next batch of jam. It's especially great used in jams made with low-pectin fruit, such as strawberries, apricots, peaches, pineapple, or cherries.