To make nacho cheese, the basic method involves creating a cheese sauce with a roux base (butter and flour) and melting cheese into milk. Here's an easy recipe outline: Ingredients:

• 2 tablespoons butter
• 2 tablespoons flour
• 1 cup whole milk
• 6-8 ounces shredded cheese (cheddar or processed American cheese)
• 1/4 teaspoon salt
• 1/4 teaspoon chili powder or cayenne pepper for a little heat (optional)

Instructions:

1. Melt the butter in a small saucepan over medium heat.
2. Stir in the flour and whisk continuously for about 1 minute until bubbly and foamy to make a roux.
3. Gradually whisk in the milk, increasing heat slightly until it simmers and thickens.
4. Remove from heat and gradually stir in the shredded cheese until melted and smooth. If necessary, return to low heat briefly to help cheese melt, but do not overheat.
5. Stir in salt and chili powder.
6. Adjust consistency with extra milk if too thick. Serve warm with tortilla chips.

This method makes a creamy, tasty nacho cheese sauce perfect for dipping or drizzling on nachos.

Would you like a detailed step-by-step with tips or variations?