In a deep skillet, brown the sausage.

Once browned, add flour and coat sausage thoroughly.

Add milk, garlic powder, onion powder, salt and pepper and bring to a boil over med-high heat stirring frequently.

Reduce heat to med-low and cook until gravy thickens to your liking (approx 30 mins)

If necessary, add 1 tablespoon cornstarch with a tablespoon or two of water to make a slurry and add to gravy to help thicken.