Oven Fried Onion Rings with Copycat Outback Blooming Onion Dipping Sauce. Healthier onion rings are crispy, crunchy, and paired with an amazing spicy sauce for dunking! Because I have a 15-pound bag of Vidalia onions to use and it's summer and 'skinny' season, I decided to make Oven Fried Onion Rings for you. I have