Dinner · Part 1 of 3: Ingredients
Lobster Mac and Cheese Stuffed Garlic Brioche Boat

- Prep
- Cook
- Total
- Serves
- 6
This is the kind of dish that makes a weeknight feel like a celebration. A whole brioche loaf is hollowed out, brushed with garlic chive butter, and filled with a luxurious mac and cheese made with butter-poached Maine lobster, Gruyère, sharp cheddar, and a whisper of Old Bay.
Baked until the bread is golden and the cheese is bubbling, it's part garlic bread, part lobster mac, entirely irresistible.
Imagine the best garlic bread you've ever had, then imagine it cradling a creamy, cheesy lobster mac and cheese. That's exactly what this recipe delivers. The brioche boat soaks up the garlic butter and turns crisp at the edges while staying soft and pillowy inside.
The filling is rich and decadent, with sweet lobster meat and a velvety sauce that clings to every piece of pasta. It's a showstopper for a special dinner or a fun twist on game day.
Ingredients
- 1 large rectangular brioche loaf
- 4 tbsp garlic chive butter, melted
- 6 oz butter-poached Maine lobster meat, chopped
- 2 cups cavatappi pasta, cooked
- 1 1/2 cups shredded Gruyère cheese
- 1 1/2 cups shredded sharp cheddar cheese
- 2 cups whole milk
- 3 tbsp unsalted butter
- 3 tbsp all-purpose flour
- 1 tsp Old Bay seasoning
- 1/2 cup garlic panko crumbs
- Kosher salt, to taste
- Freshly ground black pepper, to taste
Why this recipe works
Baking the mac and cheese inside the brioche loaf does more than look impressive — it infuses the bread with the flavors of the sauce and the garlic butter. As the boat bakes, the butter bastes the bread from the inside, creating a golden, crisp crust that contrasts with the creamy filling. The bread also acts as an edible bowl, so every bite of pasta is balanced by a bite of toasted, buttery bread.
The combination of Gruyère and sharp cheddar gives the sauce a deep, nutty flavor and a perfect melt. Gruyère brings a slightly sweet, earthy note, while cheddar adds sharpness and color.
Old Bay seasoning ties it all together with its celery salt, paprika, and spices, complementing the sweet lobster without overpowering it. The result is a sauce that's rich, well-balanced, and utterly satisfying.
Notes and substitutions
The recipe calls for butter-poached Maine lobster, which is already cooked and incredibly tender. If you have leftover lobster or a fresh lobster you've steamed yourself, that works beautifully too. Just make sure to chop it into bite-sized pieces and fold it in gently so it doesn't break apart. The lobster adds a sweet, delicate flavor that pairs perfectly with the creamy cheese sauce.
A large rectangular brioche loaf is ideal because it gives you plenty of surface area for the filling and slices neatly. If you can't find brioche, a soft French bread or sourdough with a sturdy crust can work, but the richness of brioche is part of the magic.
Garlic chive butter is easy to make by mixing softened butter with minced garlic and chopped chives; use it generously for the best flavor.
- cavatappi: elbow macaroni, shells, or radiatori — any short pasta with ridges holds the sauce well.
- Gruyère: Swiss cheese or fontina for a similar nutty, melty texture.
- sharp cheddar: white cheddar or Monterey Jack for a milder flavor.
- Maine lobster: lump crab meat or cooked shrimp for another luxurious seafood option.
Equipment
- Large pot
- Medium saucepan
- Whisk
- Mixing bowl
- Serrated knife
- Pastry brush
- Baking sheet
- Foil
Up next · Part 2 of 3
8 steps · 30 min of cooking · what to look for at each stage
Step-by-step instructions (Part 2)