YIELD: ABOUT 1/4 CUP
I salivated at a restaurant after spying Concord grape seltzer on the menu. But the results—a 1 to 3 ratio of Concord grape juice to seltzer—were very disappointing, with the seltzer diluting a majority of the grape flavor. To make a true natural grape soda, you need to take cups of grape juice and boil it down until it makes a syrup consistency. The grapes are sweet enough—no additional sugar needed. Be sure to watch the pot toward the end of the cooking time because it can go from juice to burnt syrup quite rapidly. Yes, this is time-consuming, but the results are worth it, rendering this one of my favorite syrups in the book. For an extra treat, you can stir 1 scoop vanilla ice cream into the grape soda to make a Purple Cow.
2 1/2 cups 100-percent Concord grape juice
1 tablespoon freshly squeezed lemon juice
In a medium, heavy pot, combine the grape juice and lemon juice, and bring to a boil over high heat. Boil until reduced to a syrupy consistency and about 1/4 cup of juice remains, 10 to 15 minutes. The mixture will be bubbly, so sometimes it helps to remove the pot from the heat to check the amount. Let cool, and refrigerate Concord Grape Syrup in a covered container for up to 5 days.
To make Grape Syrup: Stir 2 to 3 teaspoons Concord Grape Syrup, or to taste, into 10 ounces (1 1/4 cups) seltzer.