Copycat Arby's Cheese Sauce Recipe: Ultra-Smooth Cheddar Velvety in Minutes

This copycat Arby’s cheese sauce recipe brings that same ultra-smooth, ultra-creamy magic home, making every bite of your roast beef sandwich just as addictive. The secret lies in a precise balance of sharp cheddar, rich cream, and careful cooking to eliminate any graininess.

I've tested countless variations, and this method consistently delivers the restaurant-quality sauce you crave.

The foundation of this sauce is a simple roux—equal parts butter and flour—that creates a stable base for melting the cheese without curdling. We use sharp cheddar for that signature tangy depth, while heavy cream ensures the sauce remains velvety smooth.

The slow simmering process is critical; it allows the cheese to fully emulsify into a luscious, silky consistency that coats every spoonful.

What you'll end up with is a copycat cheese sauce so rich and creamy it'll fool even the most loyal Arby's fans. It's perfect for drizzling over roast beef sandwiches, dipping fries, or even mac and cheese.

The sauce stays smooth and velvety even when reheated, making it ideal for meal prep or serving at parties.

This recipe requires just five simple ingredients and takes less than 20 minutes to prepare, with no special equipment needed. Whether you're a fan of their classic roast beef or just love that signature sauce, this version delivers the same restaurant-quality flavor at home. Let's get started!

Ingredients for copycat arby's cheese sauce

Five ingredients, one perfect sauce. That's all you need for Arby's-level cheesy magic at home.

The butter and flour start this sauce right—equal parts make that perfect roux foundation. Cold butter is key; it prevents the flour from cooking too fast and turning grainy. I grab Land O'Lakes unsalted butter from the store because it's consistent, but any good brand works. For the flour, Bob's Red Mill all-purpose is my go-to, but honestly, whatever's in your pantry will do. The cheddar? Sharp white cheddar from a block—pre-shredded has anti-caking agents that ruin the texture. Look for Cabot or Tillamook at the grocery store; they're reliable and affordable.

No sharp cheddar? Medium cheddar plus a pinch of white vinegar mimics that tang. Running low on heavy cream? Half-and-half plus 1 tbsp butter keeps it rich. The salt is non-negotiable—Diamond Crystal is my standard because it dissolves perfectly, but any kosher salt works. Pro tip: Warm your heavy cream slightly before adding it to the cheese; this helps emulsify everything smoothly. And if you're wondering why we're not using milk? Trust me, heavy cream is the secret to that signature Arby's texture.

This sauce reheats like a dream—just pop it in a saucepan over medium-low heat and stir until smooth. Keeps for 5 days in the fridge, sealed tightly in a jar. For longer storage, freeze it in 2-tablespoon portions—perfect for sandwich drizzles. I always make double batches; it disappears fast for roast beef sandwiches or fries. The sauce thickens as it cools, so thin with a splash of warm milk if needed.

Instructions for copycat Arby's cheese sauce recipe

This ultra-smooth cheddar sauce delivers that iconic Arby's flavor in just minutes—no shortcuts, no substitutions.

In a medium saucepan over medium heat, melt the 0.5 cup unsalted butter completely, allowing it to foam but not brown. Once fully melted, immediately whisk in the 0.5 cup all-purpose flour all at once. This creates a roux—the foundation of our sauce.

Cook the roux for 1-2 minutes, whisking constantly, until it turns a pale golden color and smells nutty. You'll see it thicken noticeably—this is your signal to move quickly to the next step. If it darkens too much, you'll taste bitterness in your sauce. The key here is patience and consistent stirring.

Reduce the heat to low-medium and begin adding the 2 cups sharp white cheddar cheese in small batches. I like to add about ¼ cup at a time, whisking vigorously between additions until each portion melts completely before adding more. This gradual approach prevents clumping and ensures a silky texture.

The cheese should melt into the roux smoothly, creating a thick, glossy paste. If you see any lumps, press them through a fine-mesh sieve or whisk them out with a fork. This is where the magic happens—the cheese's natural fat and acidity marry with the roux to create that signature Arby's richness. Don't rush this step; proper melting takes about 3-4 minutes total.

Once all the cheese is fully melted, slowly pour in the 1 cup heavy cream while whisking continuously. The sauce will begin to thin out noticeably as the cream incorporates. Keep whisking for 2-3 minutes until the sauce reaches a smooth, pourable consistency—it should coat the back of a spoon without being gluey.

Here's the thing—if you add the cream too quickly, you risk creating a curdled mess. Go slow, and maintain that gentle heat. The sauce should bubble softly but not vigorously. Taste at this point and adjust the 0.25 teaspoon diamond crystal kosher salt if needed—Arby's sauce has a subtle saltiness that balances the cheddar perfectly.

Continue simmering the sauce over low heat for 4-5 minutes, stirring occasionally, until it thickens slightly and becomes glossy. You're looking for a sauce that coats the back of a spoon but still moves easily. If it gets too thick, whisk in 1 tablespoon water at a time until you reach the ideal consistency.

The final test is the "drip test": spoon a little sauce onto a cold plate. It should drip slowly in a thick stream rather than puddle. This indicates proper thickness. Remove from heat immediately—overcooking can make the sauce separate. The sauce should be hot but not boiling when you serve it, as it will continue to thicken slightly as it cools.

Transfer the cheese sauce to a clean saucepan or serving dish and keep it warm over low heat if not using immediately. This sauce is best served fresh, straight from the heat, where it maintains its signature velvety texture. The moment it starts to thicken too much, whisk in a splash of warm milk or water to restore its smooth consistency.

For that authentic Arby's experience, serve it over fries, drizzled over roast beef sandwiches, or as a dip for mozzarella sticks. The sauce should be rich, slightly tangy, and have that unmistakable cheddar depth that makes this copycat version so successful. Store leftovers in an airtight container in the refrigerator for up to 5 days, reheating gently over low heat with a splash of water to prevent separation.

Essential equipment for this dish

Basic Saucepan Setup

You only need one medium saucepan—I recommend a 3-quart stainless steel pan like the All-Clad Stainless for even heat distribution. If you're on a budget, a Calphalon nonstick saucepan works well too.

The key is a heavy-bottomed pan to prevent hot spots that can scorch your roux. Avoid thin aluminum pans—they heat unevenly and can make your sauce grainy. 🔥

Whisk Essentials

A balloon whisk is my go-to tool for this recipe because it creates air pockets that help emulsify the sauce smoothly. I use a OXO Good Grips balloon whisk—it's durable and has a comfortable handle for stirring over heat.

If you don't have one, a regular flat whisk works in a pinch, but you'll need to whisk more vigorously to avoid lumps. The whisk should be at least 10 inches long to reach all corners of your saucepan.

Cheese Grater Matters

For the sharp white cheddar, I always shred it fresh using a microplane grater or a box grater with medium holes. Pre-shredded cheese contains anti-caking agents that make the sauce grainy.

A KitchenAid box grater is my favorite—it's sturdy and gives you consistent shreds. If you don't have one, a mandoline with a cheese attachment works too, but be careful with your fingers! 🧀

Measuring Tools

Precision is key for this sauce, so invest in a stainless steel measuring spoons set—I love the OXO Good Grips version. For the 0.5 cup butter and flour, use a liquid measuring cup with clear markings.

A digital kitchen scale is optional but helpful for the cheese—2 cups shredded cheddar should weigh about 8 ounces. If you don't have one, stick to the cup measurement and pack the cheese lightly into your measuring cup.

Optional Immersion Blender

If you want to take your sauce to the next level, an immersion blender like the Hamilton Beach Multi-Speed eliminates every last lump for a silky texture. After adding the heavy cream, blend for 10-15 seconds on low speed.

This isn't required, but it's a game-changer for that ultra-smooth Arby's consistency. Just be sure to keep the sauce on low heat while blending to prevent splattering. ⚡

Storage Containers

For leftovers, transfer the sauce to glass jars with airtight lids—I recommend Ball Mason jars in 8-ounce or 16-ounce sizes. The glass won't absorb flavors like plastic can, and the wide mouths make it easy to scoop.

For freezing, use silicone ice cube trays—portion the sauce into 2-tablespoon servings for perfect single-use amounts. Label everything with the date to keep track of freshness. 📅

Frequently asked questions