Cherries: Drain the cherries, reserving the liquid. Place the cherries in a bowl and toss with 2 tablespoons Kirsch. Cover the bowl with plastic wrap and set aside. Place 1 cup (240 ml) of the reserved cherry syrup in a small saucepan, along with the sugar, and heat until sugar has dissolved. Remove from heat, add 2 tablespoons Kirsch, and let cool.