Gather all of your ingredients, and measure out ahead of time!
It's as simple as it sounds! Melt butter on medium high.
Add garlic and onion and sauté until onions are tender.
Add flour to roasted garlic and onions and stir until the mix becomes clumpy.
Get everything mixed together really well!
Blend very well until it's at the consistency you want.
Add your cheese and mix up!