Preheat the griddle to 300 degrees F.
Add the remaining 1/2 teaspoon of salt to mixture and beat thoroughly. Place metal rings onto the griddle and coat lightly with vegetable spray. Using #20 ice cream scoop, place 2 scoops into each ring and cover with a pot lid or cookie sheet and cook for 5 to 6 minutes. Remove the lid and flip rings using tongs. Cover with the lid and cook for another 5 to 6 minutes or until golden brown. Place on a cooling rack, remove rings and cool. Split with fork and serve.
*Cook's Note: Small tuna cans with tops and bottoms removed work well for metal rings.