Here's how I do it.
Fry a pound of bacon in a 10 inch pan , make sure you leave some crumbs in the pan.
Leave the grease and bits in , take the bacon out.
turn up the heat and add enough flour to get the grease a little thicker and bubbly.
Let it thicken and brown while stirriing it along the bottom.
When it gets real brown and bubbly add milk to about 2/3rds the way up the pan.
Add whatever seasonings you want.
Turn the burner back down a little , keep stirring until it looks like gravy.
Let sit for a minute to thicken a little more , and serve.
How do you do it ?