In a large skillet, cook the sausage over medium heat until browned.
Remove the sausage from the skillet, leaving the drippings.
Sprinkle the flour into the drippings and whisk to combine.
Cook the roux for about 2 minutes until golden brown.
Gradually whisk in the milk, ensuring there are no lumps.
Bring the mixture to a simmer, stirring constantly until thickened.
Return the sausage to the skillet and mix well.
Season with salt, pepper, garlic powder, and onion powder.
Cook for an additional 2-3 minutes.
Serve hot over freshly baked biscuits.