Rhubarb Cordial

• μερίδες: 3 cups

Υλικά

1 pound (450 grams) rhubarb, trimmed and cut into 1/2-inch pieces

3 1/2 cups (830 ml) gin, plus more if necessary

3 wide strips orange zest

1/2 cup (100 grams) sugar

3 tablespoons (45 ml) Grand Marnier, Cointreau, or triple sec (to serve)

A splash of club soda, tonic water, or sparkling wine (to serve, optional)