Preheat the oven to 375°F.
Clean the cherries, cut them in half, and remove the pits. Place the cherries in a bowl and coat them with 3 Tablespoons of sugar. Set aside.
In a blender, add milk, 1 cup of sugar, flour, salt, vanilla, and eggs until completely combined.
Place butter in the tart dish and put the tart dish in the oven for 2-3 minutes until the butter is melted.
Next, place the cherries flat in the bottom of the tart pan. Then pour the batter over the top.
Bake for 40-45 minutes until lightly browned and the center is firm. You can use a skewer to check that the center is done.
Cool slightly, garnish with powdered sugar, and serve warm. (This dessert is traditionally served warm but I enjoy/prefer it cold.)