First, prepare a roux by heating a large pot or Dutch oven over medium/high heat. Add butter. When the butter is melted, add flour and whisk until the butter and flour form a crumble or paste.
Slowly add milk to the pot, whisking constantly. Continue to whisk the roux over medium/high heat for about 4-6 minutes or until the roux thickens.
When the roux is thick, remove from heat and add the Velveeta. Whisk until the Velveeta cheese has melted.
Add granulated garlic, hot sauce, and salt and pepper to the cheese sauce. Mix well.
Serve the Velveeta cheese sauce with tortilla chips, vegetables, or cooked pasta.
