Easy Nectarine and Easy Plum JamsSeptember 9, 2009 at 3:46 pm | Posted in jams & preserves, sweet things | 18 Comments
Before I really get into this, I want you to know that I do realize I’m basically recycling my Easy Apricot Jam post from back in July. But we’re all for recycling, right? Look– I even recycled these old jars…
In a lot of ways I’m ready for fall, but I want nothing to do with apples and pears quite yet…I’m still clinging for dear life onto the summer fruit and veg. Just this morning I went to the Union Square Greenmarket to restock my supply of peaches, raspberries and tristar strawberries, afraid that maybe by next week they’ll have disappeared. I find some consolation in the fact that, if I cook my fruit down with a little sugar and lemon juice, I can trap a piece of summer in a Mason jar and keep it for a few more weeks.
Easy Nectarine and Easy Plum Jams— makes 2 1/2 cups
adapted from Cooks Illustrated (July/August 1998)
Note: To prep your stonefruit, wash (and peel the nectarines…for the plums, you can leave the skins on), halve and pit them. Then slice them very thin. You want to wind up with 1 pound of fruit after prepping.
The jam will continue to thicken as it cools, so err on the side of undercooking. Because of its reduced sugar amounts, this jam cannot be canned.
1 pound prepared fruit, about 3 cups
1 cup plus 2 T sugar for plum jam/1 ¼ cups sugar for nectarine jam
2 T juice from 1 lemon
– Set a bowl over a larger bowl of ice water; set aside.
– In 10- or 12-inch skillet, bring fruit, sugar, and lemon juice to boil over medium-high heat, stirring occasionally. Reduce heat to medium and cook, stirring constantly and skimming foam as necessary, until mixture begins to look syrupy and thickens slightly, about 5 minutes; remove from heat. Spoon 1/2 teaspoon fruit mixture into bowl over ice water; allow to set for 30 seconds. Tip bowl 45 degrees to one side; jam should be a soft gel that moves slightly. If mixture is liquid and runs to side of bowl, return skillet to heat and cook, stirring constantly, 1 to 2 minutes longer; then repeat test. Save the ice bath to cool the finished product.
-Cool jam to room temperature (over the ice bath) before serving or transferring to a clean glass jar or airtight container (you can sterilize first with boiling water, if you are so inclined). It will keep, covered and refrigerated, for up to two weeks (I’ve kept mine for up to a month…but that’s just me).