This is heavily adapted from a Tyler Florence recipe. Actually, I’ve never tried the original recipe as written- I made several changes the first time I tried it, and more the next time- you know how it goes!
Anyway, this is what I ended up with. It’s definitely not diet-friendly, but everyone sure seems to love it.
Preheat the oven to 400°.
In a large, deep skillet cook the bacon til crispy. Drain off the excess fat and add the chopped onion and thyme leaves (if you really love garlic, chop up a couple cloves and add them here too!) and cook until the onion is translucent. Remove the bacon-onion mixture to a bowl and set aside.
Add the butter to the pan and let it melt, then whisk in the flour to make a roux. Strain the solids out of the half and half and add it to the pan, whisking til smooth. Add all but a couple handfuls of the cheese and stir until the cheese is melted.
Bake for 30 minutes, or until hot & bubbly and the top is golden brown.