peanut oil or preferred cooking oil for deep frying
Instructions
Prepare onions and place into a deep casserole dish or bowl. Pour buttermilk over and allow to soak in the refrigerator from 4 hours to overnight for best results.
Preheat deep fryer, deep skillet or heavy-bottomed large stockpot with oil to 360 degrees.
Combine flour, salt, peppers, sugar, egg, and buttermilk until well-combined.
Dip onion rings into batter and then drop into fryer.
Allow to cook on both sides until golden brown - about 3-6 minutes.