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This copycat recipe replicates LongHorn Steakhouse's lobster mac and cheese by using cavatappi pasta, a precise four-cheese blend, a roux-based sauce, and tempura-battered lobster, baked with a panko topping and served with a crisp salad to balance the richness.
Question | Answer |
|---|---|
What pasta does LongHorn use and can I substitute? | LongHorn uses cavatappi; elbow macaroni substitutes but holds less sauce. |
What are the four cheeses in the blend? | The blend is Gruyère, sharp cheddar, Parmesan, and Fontina. |
Why is the lobster fried in tempura batter? | The batter creates a crispy exterior that contrasts the creamy pasta. |
What salad pairs best with this dish? | Serve with a crisp, acidic salad like mixed greens with vinaigrette to cut the richness. |
Copycat Longhorn lobster mac and cheese brings steakhouse quality home.
This copycat recipe replicates the rich, creamy lobster mac and cheese from LongHorn Steakhouse. Use their exact cheese blend and cooking method for authentic results.
The Pasta Choice
LongHorn uses cavatappi. This corkscrew pasta’s ridges trap sauce and bacon bits perfectly. Elbow macaroni substitutes well if needed.
Four-Cheese Blend
The signature sauce combines four cheeses for depth and melt. Measure precisely for best texture.
Cheese | Amount | Purpose |
|---|---|---|
Gruyère | 2 oz shredded | Nutty base |
Sharp cheddar | 8 oz shredded | Sharpness |
Parmesan | 2 tbsp shredded | Salty finish |
Fontina | 4 oz shredded | Creamy melt |
Roux-Based Sauce
Melt 2 tbsp butter. Whisk in 2 tbsp flour, cook 1 minute. Gradually add 2 cups half-and-half while stirring. Simmer until thickened. Reduce heat. Add cheeses slowly. Stir in 1 tsp smoked paprika.
Lobster Preparation
Split 2 lobster tails lengthwise. Remove meat, keep tail end attached. Season with salt and pepper. Dredge in flour. Dip in tempura batter. Fry until golden. This creates a crispy exterior that contrasts the creamy sauce.
Assembly and Baking
Cook 1 lb cavatappi al dente. Drain. Mix pasta with cheese sauce. Layer in baking dish with lobster and 4 pieces crumbled cooked bacon. Top with 1/2 cup panko breadcrumbs. Bake at 350°F for 20 minutes until bubbly and golden.
Use cavatappi pasta, four cheeses, and fresh lobster for authentic flavor.
Cavatappi Pasta
LongHorn Steakhouse uses cavatappi. This corkscrew-shaped pasta has ridges that trap the cheese sauce and crispy bacon bits. Its hollow center holds sauce inside the noodle. Cook it al dente. It will soften further in the oven. Elbow macaroni works as a substitute but provides less sauce adhesion.
The Four-Cheese Blend
The signature cheese sauce requires four specific cheeses. Shred them yourself. Pre-shredded cheese contains anti-caking agents that prevent smooth melting.
Cheese | Amount | Flavor & Function |
|---|---|---|
Gruyère | 2 oz, shredded | Nutty, slightly sweet base. Melts smoothly. |
Sharp Cheddar | 8 oz, shredded | Provides classic tang and vibrant color. |
Parmesan | 2 tbsp, shredded | Salty, umami finish. Use real Parmigiano-Reggiano. |
Fontina | 4 oz, shredded | Mild, buttery, and exceptionally creamy melt. |
Combine all shredded cheeses before adding to the sauce. This ensures even distribution and prevents clumping.
Fresh Lobster Preparation
LongHorn’s version features pre-cooked, battered lobster tails. This method adds a crispy texture contrast to the creamy pasta.
- Split two 8-oz lobster tails lengthwise with a sharp knife.
- Remove meat from shells, leaving the tail end attached.
- Season meat with salt and pepper.
- Dredge lightly in all-purpose flour.
- Dip into tempura batter (flour + ice-cold sparkling water).
- Fry at 350°F until golden and crisp, about 2-3 minutes.
- Drain on paper towels. Chop into bite-sized pieces before folding into the mac.
This two-step coating (flour then batter) creates a shatteringly crisp shell that protects the lobster’s tender meat. The batter’s lightness ensures it doesn’t overpower the delicate seafood flavor.
Ingredient Synergy
The combination is deliberate. The cavatappi’s shape holds the multi-cheese sauce. The cheese blend balances nutty, sharp, salty, and creamy notes. The battered lobster provides a textural counterpoint—crispy against the soft pasta, sweet against the savory cheese. The bacon and panko topping add salty crunch. Each component is essential for the full steakhouse experience.
Make a roux-based cheese sauce with half-and-half for creaminess.
The Roux Foundation
A roux—equal parts fat and flour cooked together—thickens the sauce and prevents the cheese from curdling. The butter-to-flour ratio matters. Too much flour creates a pasty texture. Too little fails to thicken properly.
Component | Amount |
|---|---|
Butter | 2 tbsp |
All-purpose flour | 2 tbsp |
Half-and-half | 2 cups |
The Step-by-Step Process
Start with a medium saucepan over medium heat. Melt the butter completely. Add the flour all at once. Whisk vigorously. Cook for exactly 1 minute. The flour should lose its raw smell but stay pale. This step cooks out the starchy taste.
Pour in the first cup of half-and-half slowly while whisking constantly. The mixture will thicken dramatically—this is normal. Add the second cup gradually, continuing to whisk. The sauce should coat the back of a spoon. This stage takes 3-5 minutes.
Reduce heat to low. The cheese will not melt properly over high heat. Begin adding the shredded cheese blend one handful at a time. Stir until completely melted before adding the next. Rushing this step causes clumping.
Critical Timing
The roux must be hot when cheese is added. Cheese proteins activate between 140-170°F. Below that temperature, cheese remains chunky. Above 180°F, cheese becomes rubbery and separates.
Once all cheese melts, stir in 1 teaspoon smoked paprika. This adds a subtle, warm note that complements the lobster without dominating it. Keep the sauce warm over the lowest setting until ready to combine with pasta.
Sauce Temperature for Mixing
Mix hot sauce with room-temperature pasta. The temperature differential allows the sauce to coat evenly without immediately hardening. Warm pasta also finishes cooking the pasta's outer layer, creating a unified dish rather than saucy pasta floating in liquid.
Layer pasta, sauce, lobster, and bacon topping then bake until golden.
Preparation Before Assembly
Preheat oven to 350°F. Lightly grease a 9x13-inch baking dish with butter or non-stick spray. Have all components ready: hot cheese sauce, cooked pasta, battered lobster, and bacon topping. Timing is critical. The sauce must be hot and the pasta at room temperature or warm. Cold pasta chills the sauce, causing it to seize and become grainy.
Combining Pasta and Sauce
Place the drained cavatappi in a large mixing bowl. Pour the hot cheese sauce over it. Fold gently with a spatula until every noodle is coated. Do not overmix. The pasta should be evenly coated but not submerged in a pool of liquid. The sauce will thicken as it cools slightly. If the mixture seems dry, add a splash of reserved pasta water or half-and-half.
Layering the Dish
Transfer half the sauced pasta to the prepared dish. Distribute half the chopped lobster pieces evenly over the pasta. Top with half the crumbled bacon. Repeat with the remaining pasta, lobster, and bacon. This layering ensures each bite contains all three key components. Do not stir once in the baking dish. The goal is distinct layers that bake into one cohesive casserole.
The Crispy Topping
Combine the topping ingredients in a small bowl. Mix until the butter coats every breadcrumb.
Topping Ingredient | Amount | Role |
|---|---|---|
Panko breadcrumbs | 1/2 cup | Provides airy, shatterable crunch. |
Unsalted butter, melted | 2 tbsp | Binds crumbs, promotes browning. |
Smoked paprika | Pinch | Adds color and subtle smoky note. |
Sprinkle the mixture evenly over the top layer. Do not press down. The topping must remain loose to crisp up in the oven.
Baking to Perfection
Place the dish on a middle rack. Bake for 18-22 minutes. The mac is ready when: the edges are actively bubbling, the top is a deep golden brown, and the center is hot (an instant-read thermometer should read 165°F). Rotate the dish halfway through baking for even coloring.
Rest for 5-7 minutes after baking. This allows the sauce to set slightly, making it easier to serve. The dish will continue to thicken as it cools. Serve directly from the baking dish.
Serve hot with a crisp salad for a complete meal.
The Perfect Balance
Lobster mac and cheese is rich, creamy, and indulgent. A crisp, acidic salad cuts through the fat and refreshes the palate between bites. The salad's texture contrast—snappy vegetables against the soft, chewy pasta—makes each element more enjoyable.
Recommended Salad Pairings
Choose salads with bright acid, herbal notes, and crunch. Avoid creamy dressings or heavy ingredients that compete with the mac's richness.
Salad Type | Key Ingredients | Why It Works |
|---|---|---|
Classic Caesar | Romaine, parmesan, croutons, lemon-anchovy dressing | Parmesan echoes the mac's cheese. Acid cuts cream. |
Mixed Greens with Vinaigrette | Arugula, spinach, red onion, red wine vinaigrette | Peppery arugula provides palate cleansing. |
Citrus Slaw | Cabbage, oranges, cilantro, lime vinaigrette | Sweet citrus cuts the smoky bacon notes. |
Cucumber Tomato | English cucumber, cherry tomatoes, red wine vinegar, olive oil | Cool, refreshing, and light against heavy pasta. |
Best Dressings
- Red wine vinaigrette (bold, acidic)
- Lemon and olive oil (bright, simple)
- Balsamic reduction (sweet-tart)
- Honey mustard (slightly sweet, tangy)
Avoid ranch, blue cheese, or Caesar dressings. Their creaminess adds unnecessary heaviness.
Portion Planning
Serve the salad first. A small side salad (about 1 cup) precedes the main course. This sequence lets the salad reset the palate before the mac's richness. Alternatively, serve the salad as a side—offer second helpings of salad to balance the meal.
Wine Pairing
Pair with a crisp white wine. Chardonnay complements the buttery cheese sauce. Sauvignon Blanc provides acid that matches the salad. For beer drinkers, a light pilsner or lager refreshes between bites.
Plating and Presentation
Present the mac in the baking dish at the table. Let guests serve themselves directly from the dish. Plate the salad individually on the side. Garnish with a lemon wedge. Serve immediately while hot. The contrast between the bubbling mac and cool salad is the visual promise of the flavor experience to come.