In a medium saucepan, melt butter over medium heat. Add flour and garlic powder and whisk until combined. Gradually add milk, stirring constantly, and cook until thickened.
Reduce heat to low and add cheddar and Parmesan cheeses. Stir until cheese is melted and sauce is smooth.
Serve warm with chips, nachos, or vegetables. Enjoy!
Interesting Facts
Queso-sauce is often referred to as “queso dip” or “cheese dip”.
This sauce is a popular appetizer in many Mexican restaurants.
Queso-sauce is also great as a topping for tacos, burritos, and enchiladas.