A perfect alternative is to substitute about 3 or 4 peeled, sliced ripe peaches. You get the same texture and the same spectacular color, and the peach and blueberry season are in tandem here in the mid-Atlantic. I often double this recipe, since leftovers are so good. Like with gazpacho, it's important to make it early enough so that it can chill for 5-6 hours.
1 pint blueberries, rinsed. Pull off stems.
1 pint strawberries, hulled and halved or quartered, **OR** 3 or 4 ripe peeled peaches
1 c. white grape juice (purple works, too)
1/4 c. lemon juice
1/3 c. water
1 T + 2 t cornstarch
1/4 to 1/2 sugar
If you're using peaches, pour hot or boiling water over them and let them sit a few minutes. The skins will slide off.
Place blueberries, strawberries or peaches, grape juice and lemon juice into a medium sauce pan, cover. Bring to a brisk boil over high heat. [If using an induction cooktop, let it boil for 3-4 minutes. It comes to the boil so fast, the berries don't pop.] With a gas oven top, that takes awhile; with our new electric stove, it's really fast. The only thing that takes any real time in this recipe is slicing the strawberries.
Remove from heat. In a measuring cup, mix the water and cornstarch into a smooth paste and stir it into the berry mixture. Return to heat, and quickly bring to a boil, stirring constantly. This is the neat part - stir for one minute, and the liquid thickens and glistens. Sweeten to taste with sugar.
Chill thoroughly - for at least 5 to 6 hours. The color deepens.
Garnish with chopped fresh mint, sliced fresh fruit. This is a deep, gorgeous color so serve it in bowls which will show that off! It is refreshing, beautiful, and the lemon juice gives it a lovely tartness which tingles a bit on the tongue. MMMMM. The Fruit Roll-Up moniker came from Tasha, at Zach's bar mitzvah, when we served this.
This is DAT's favorite cold soup. Always makes him happy.