Recipe(tried): Porky's Onion Rings (copycat recipe) - All that is out there...

I found this and it is really really close, it was the org recipe for the batter (still can't find the salt recipe)

I have been having an issue getting the texture right... so if you figure that out I would love the know what you did.

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PORKY'S ONION RINGS

1 extra large egg
2 cups whole milk (important to use whole milk)
2 tablespoons (or less, to taste) seasoning salt (use Lawry's - Phaed)
4 cups plus 1-tablespoon Gold Medal flour
Extra Large yellow onions

(Note: the original recipe also calls for regular salt, about 5 teaspoons
for a recipe of these proportions; use if you like a lot of salt.)

Combine the first 4 ingredients and beat with a wire whip for several
minutes, until very smooth. Refrigerate for at least 1 hour.

Slice extra-large yellow onions into rounds; break apart into individual
rings. Dip rings into batter using a long-handled fork.

Drop rings into hot oil, at least 360 degrees F. Cook rings until medium golden
brown. If desired, sprinkle with more seasoning salt before serving.

Serves 6 to 8.