Grandma's Onion Rings (Southern Style)

Step 1
Heat oil in a large heavy skillet over medium-high heat, or deep-fryer to 375 degrees F (190 degrees C).

Step 2
Place flour in a shallow baking pan and stir in 1 teaspoon of salt and 1 teaspoon of pepper. In a medium bowl, whisk together egg whites, milk, vinegar, and remaining salt and pepper until frothy.

Step 3
Dip onion rings in wet ingredients then into flour mixture until coated. Then dip in egg white mixture again, and then into flour again.

Step 4
Fry onion rings in hot oil a few at a time so they are not crowded, until golden brown. Drain on paper towels, and serve immediately.