Smoked Salmon without nori caviar tart

1 tablespoon olive oil 3 medium leeks , white and light green parts only, rinsed and sliced 1 garlic clove , minced 1 large russet potato , peeled and cubed 1[...]

2 tablespoons butter 2 shallots , finely chopped 2 tablespoons all-purpose flour 2 1/2 cups milk 1/2 cup fish stock 1 cucumber , peeled, chopped 6 ounces[...]

2 tablespoons butter 1 small onion , coarsely chopped 1 celery , coarsely chopped 2 1/2 tablespoons flour one 14 . 5-ounce can chicken broth 3 cups whole milk[...]