Sift the flour and salt into a mixing bowl.

Add the eggs and half of the milk, whisk until incorporated.

Whisk in the remaining milk until smooth, refrigerate.

Preheat oven to 400°F with oven rack in the center.

To a 9 x 13 casserole dish (or two, 9 x 9 cast iron skillets) add the oil and coat the bottom of the pan. Add the sausages evenly apart and away from the sides of the dish and coat with the oil.

Roast the sausages for 10 minutes.

After 10 minutes, increase the oven temperature to 425°F with the sausages still in the oven.

Remove the pan from the oven, close the door (to keep in the heat) and quickly pour the batter around the sausages.

Return the pan back to the oven and bake for 20 minutes until the batter is browned and risen around the sausages.

Serve with onion gravy and vegetables.