Remove and discard green tops from leeks. Cut white portions diagonally into thin slices; set aside.
Combine flour, salt, and pepper in a shallow bowl; dredge cutlets in flour mixture. Cook cutlets in 2 tablespoons olive oil in a large skillet 2 minutes on each side or until golden. Remove cutlets from pan, and keep warm.
Sauté leeks in remaining tablespoon olive oil in skillet 1 minute; add wine, and cook, stirring often, 1 minute or until almost all of the liquid has evaporated. Add whipping cream, and cook, stirring constantly, about 2 minutes or until mixture is reduced by half. Serve with veal.