Texas Roadhouse Mac and Cheese Recipe (Copycat)

The mac & cheese is the only Texas Roadhouse side that charges a premium, $4.48 against the standard $3.49, and the dining room pays it without complaint. The version is stovetop-creamy rather than baked-dry, and the copycat's entire secret is a two-cheese blend where American does the structural work cheddar cannot do alone.
The Recipe
Boil a pound of elbow macaroni one minute short of the package. Meanwhile: melt 3 tablespoons butter, whisk in 3 tablespoons flour for one minute, then whisk in 2½ cups whole milk and simmer to a light sauce, about five minutes. Off the heat entirely, melt in 2 cups shredded cheddar and 4 ounces chopped American cheese with a teaspoon of salt and ½ teaspoon mustard powder. Fold in the drained pasta and rest two minutes.
The rest is real: the sauce tightens from soup-adjacent to perfectly coating in those 120 seconds, and serving immediately versus resting is the difference between a puddle and a side dish.
Why American Cheese Is the Secret
Cheddar alone breaks into grainy protein and pooled fat when melted into sauce; its flavor is the point but its chemistry is treacherous. American cheese carries emulsifying salts that hold the whole sauce in silky suspension. The 4-to-1 cheddar-to-American ratio takes cheddar's flavor and American's physics, which is the entire restaurant trick.
Off-heat melting is the other half: cheese stirred into boiling sauce seizes, cheese folded into hot-but-not-bubbling sauce melts like intention. Kill the burner before the cheese enters and the sauce never punishes you.
Serving and Upgrades
At the restaurant it flanks ribs and country plates and headlines the kids menu. At home the upgrade paths are crumbled bacon folded through, a buttered-panko broil for crunch partisans, or a ladle of chili over the top for the full roadside diner experience.
