30 mini phyllo shells 1/2 cup chopped onion, finely chopped 2 tablespoons unsalted butter 8 ounces canned mushrooms, broiled in butter 1 clove garlic, minced 1/2 teaspoon marjoram 1/2 cup chicken broth, or mushroom broth 1 tablespoon cornstarch 1 teaspoon Read More …