French Toast with yolks

2 eggs , separated 1 teaspoon vanilla extract 1 1/2 cups soft breadcrumbs 8 slices French bread (thick slices) 4 -6 tablespoons butter 2 cups chopped mangoes[...]

8 slices challah, sliced 3/4-inch thick, staled 1 1/2 cups whole milk 3 large eggs (or 6 egg yolks) 2 tablespoons brown sugar 1/4 teaspoon salt 1/2 teaspoon[...]