Years ago, my husband invented this gooey cheese dip. I may be biased, but I have to say it's excellent. If you like heat, rev it up with finely chopped jalapenos. —Patricia Leinheiser, Albuquerque, New Mexico
Optional: Chopped tomato and sliced jalapeno pepper
In a saucepan, heat butter over medium-high heat; saute onion and garlic until tender. Add chiles; cook and stir 5 minutes. In a small bowl, mix cornstarch and milk until smooth; stir into onion mixture. Bring to a boil; cook and stir until thickened, 1-2 minutes.
Reduce heat to low; gradually stir in cheeses, adding in small amounts and allowing cheese to melt between additions. Serve warm with chips. If desired, top with tomato and jalapeno.