Combine flour and salt in a large mixing bowl. Combine milk and eggs, beating well; add to flour mixture, beating constantly with a wire whisk until batter is smooth.
Place twelve 6-ounce custard cups on a jellyroll pan. Spoon 1 teaspoon reserved drippings into each cup. Place jellyroll pan in a 425° oven for 5 minutes.
Pour about 1/3 cup batter into each cup. Bake at 425° for 15 minutes. Reduce heat to 350°; continue baking 15 minutes or until puffed and golden brown. Unmold to serve.