Preheat oven to 350 F
Butter a baking dish (around 10 x 7 inches). Scatter the cherries at the bottom
Whisk the eggs, sugar, salt till well blended. Add the flour, mix well. Add the milk, vanilla extract (or better yet, Kirsch). Mix well.
Pour the batter over the cherries.
Bake for 35-45 minutes. After around 25 minutes, check that it's baking evenly, if some parts are more brown, cover with foil. It's ready when golden brown and a clean knife inserted into the center comes out clean
Remove from the oven and let cool.
Dust with powdered sugar. Serve warm with a scoop of ice cream if you wish!