I didn't have Kirsch and didn't want to spend the money to buy a bottle (it ain't cheap!), so I opted for a equal parts cherry juice and vodka. Hmmm! I also used substituted All Purpose flour for the whole wheat in this case, only because I was out of whole-wheat flour.
1 1/2 teaspoons cornstarch
3 cups fresh sweet cherries, pitted and coarsely chopped
2 tablespoons kirsch
1 teaspoon fresh grated lemon zest
1/4 teaspoon almond extract
Spoon the cherry mixture over the batter. Top with the remaining batter. Use a thin knife to gently swirl the batter and cherries together.