Make this ooey gooey 4-ingredient pretzel cheese dip to serve along with pretzel bites for an easy crowd-pleasing appetizer that will have everyone coming back for more!
Heat milk in a small saucepan over medium heat until small bubbles form on the top.
Meanwhile, melt the butter in another saucepan over medium heat. Add flour and whisk until lightly browned, 2-3 minutes.
Add the warm milk to the flour butter mixture in a slow, steady stream, whisking constantly. Cook until the mixture thickens, about 5 minutes. Add the cheese and stir until smooth. Season with salt and pepper, to taste.
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Notes
You can make this dip ahead of time and store it in an airtight container in the refrigerator for 4 to 5 days.
To Reheat: Place it in a saucepan on a stovetop over low heat, stir the sauce constantly until it warms through and becomes smooth again. You can also reheat it in a microwave, stirring every 20-30 seconds.