- 1 cup ketchup
- 1 tablespoon stone-ground mustard
- 1 tablespoon Sriracha
- Vegetable or peanut oil, for fryer
- 3 large yellow onions, sliced 1/8-inch thick, in a bowl of ice water
- 1 cup all-purpose flour
- 1 tablespoon salt
- 1 teaspoon ground pepper
- 1 gallon ice water
For the spiced ketchup: In a bowl, whisk together the ketchup, mustard and Sriracha, stirring well. Then refrigerate until serving.
For the onion rings: Preheat a deep-fryer to 375 degrees F with vegetable or peanut oil, waiting until heated. Next, drain the ice water from the cut onions, ensuring the water has drained. Next, in a bowl, blend the flour, salt and pepper, mixing well. Then add one-third of the onions. Mix the onions well, tap off excess flour and then add to the fryer, cooking until crisp, about 2 minutes. After removing, allow to drain excess oil on paper towels. Repeat with the remaining onions. Serve with the spiced ketchup.