Put flour, 1 tablespoon of sugar and salt in a bowl. First stir in the milk, then the egg. Let the dough swell for about 15 minutes. Let the cherries thaw.
Peel or clean, wash and chop the vegetables. Peel and finely chop onion and garlic. Wash thyme, shake dry, remove leaves. Bring 3-4 l salt water (1 teaspoon salt per litre) to the boil.
Add 2 tablespoons butter, 4 tablespoons sugar and orange juice to the pan, bring to the boil and simmer for about 3 minutes until the sugar is dissolved. Add cherries, bring to the boil again, remove pan from heat. Spread the crêpes in the pan, sprinkle with kirsch and light immediately.