If you want as much deliciousness with as little effort as possible, freezer jam is the jam for you. I wasn’t even going to post about it, because I made in 15 minutes before a doctor’s appointment and didn’t bother to take pictures. But it was so good.
There’s no canning needed. You don’t even cook the fruit at all. You mash the berries in a measuring cup, and boil the pectin and sugar in a separate pot. Because you cook the pectin and not the fruit, the flavor is incredibly fresh, more like eating freshly picked berries than any other jam. It does need to be stored in the freezer, though.
I used Sure-Jell low- or no-sugar-needed pectin. If you use a different kind of pectin, make sure to get one that works for freezer jam. Then just follow the manufacturer’s instructions for raspberry freezer jam, scaling the recipe down to 2 cups of berries (or whatever amount you have).
Looking for more freezer jam? Serious Eats has some tasty-looking freezer jam recipes for slightly larger batches (about 5 cups).
Black or Red Raspberry Freezer Jam
Yields one 16-oz jar
2 cups black or red raspberries
3/4 cup sugar
12 grams (about 3 1/2 teaspoons) Sure-Jell low-or-no-sugar-needed pectin
1/4 cup water
1. Using the back of a large spoon, mash the berries in a 2-cup liquid measuring cup.
2. Stir together 3/4 cup sugar and 12 grams pectin in a pot (dry). Add 1/4 cup water, then bring to a boil and boil for 1 minute, stirring constantly.
3. Immediately stir the pectin mixture into the berries.
4. Pour into a clean freezing-friendly container (leave a bit of space at the top, because it will expand in the freezer). Let the jam sit at room temperature until it sets, refrigerate for 24 hours, and then freeze. If not frozen, it will keep in the refrigerator for a couple of weeks.