In a shallow bowl, mix 2 cups flour with seasoned salt, black pepper, and cayenne pepper.
In a separate bowl, whisk together the eggs and 1 1/2 cups milk.
Dredge each piece of cube steak in the seasoned flour, dip in the egg mixture, then return to the flour.
Heat oil in a large skillet over medium-high heat.
Fry the steaks one or two at a time, cooking for about 3-4 minutes per side until golden brown and crispy. Transfer to a paper towel-lined plate.
To make the gravy, drain most of the oil from the skillet, leaving about 1/4 cup.
Add 1/4 cup flour and stir to form a roux. Cook for 2 minutes.
Gradually whisk in 2 cups milk and continue to cook, stirring constantly, until thickened.
Season with salt and pepper to taste.
Serve the chicken fried steak topped with creamy gravy.