Old Spaghetti Factory Mizithra & Browned Butter Copycat

Spaghetti with browned butter and mizithra is the dish people drive to The Old Spaghetti Factory for. Three ingredients, no sauce, no tomatoes: nutty browned butter, salty aged Greek cheese, and hot pasta. It takes twenty minutes and it is almost impossible to stop eating.

It’s also the dish people most often fail to recreate, and the reasons are always the same three. Not enough butter, butter that never actually browned, and the wrong cheese. This recipe deals with all three, including a straight answer on where to find mizithra and what to use if you can’t.

Why You Will Love This Recipe

• Ready in the time it takes to boil pasta.
• Four ingredients, no sauce to simmer.
• Restaurant-exact when you use the right cheese.
• A real substitution plan if mizithra isn’t available near you.
• Scales up easily and kids eat it without argument.

Where To Buy Mizithra Cheese (And What To Use Instead)

This is the part that stops most people, so here it is first.

Mizithra is a Greek whey cheese. The aged, hard version is what you want, not the soft fresh kind, which is closer to ricotta and will turn to paste in hot pasta. Look for it labeled aged, dry or xiromizithra.

Where to look: Greek and Mediterranean grocers first, since they nearly always carry it. Then the specialty cheese counter at a larger supermarket, where it may be sold as Myzithra with a Y. Online cheese retailers ship it, and it keeps for weeks wrapped well in the fridge.

If you can’t find it: ricotta salata is the closest single substitute, with the same dry crumble and salt level. Pecorino Romano is sharper and saltier but widely available, and a blend of two parts ricotta salata to one part Romano gets you very close. Parmesan alone is the weakest option; it’s nutty where mizithra is tangy.

Buy it in a block and grate it yourself. Pre-grated cheese is coated with anti-caking starch, which keeps it from melting into the butter and leaves a grainy film on the pasta.

Why Your Version Doesn’t Taste Like Theirs

You aren’t using enough butter. The restaurant portion is far more butter than most home cooks are comfortable with. This recipe uses two sticks for a pound of pasta. That’s the dish. Cutting it back gives you dry spaghetti with cheese on it.

Your butter didn’t brown. Melted butter is not browned butter. You need the milk solids to toast to a deep amber and the smell to turn nutty, which takes five to eight minutes and happens fast at the end.

Your cheese was wrong or pre-grated. See above. This is the single most common reason a home version tastes flat.

Ingredients

• Spaghetti: One pound, cooked al dente in well-salted water
• Unsalted butter: Two full sticks, browned until deep amber and nutty
• Aged mizithra cheese: Grated fresh from a block, generously
• Romano cheese: A smaller amount for extra sharpness and salt
• Fresh parsley: Chopped, for color and a clean finish
• Black pepper: Cracked at the table, no salt needed

How To Make It

Step One: Bring a large pot of well-salted water to a boil and cook the spaghetti to al dente. Reserve half a cup of pasta water before draining, and do not rinse the pasta.

Step Two: While the pasta cooks, put the butter in a light-colored saucepan over medium heat. A light pan matters here — you need to see the color change, and you can’t in dark nonstick.

Step Three: Let the butter melt, then foam. Swirl the pan occasionally. After 5 to 8 minutes the foam subsides, brown flecks appear on the bottom, and the smell turns nutty and caramel-like. The moment it’s deep amber, pull it off the heat. It goes from browned to burnt in under a minute.

Step Four: Drain the pasta and return it to the hot pot. Pour over about three quarters of the browned butter, including the toasted bits from the bottom of the pan, and toss hard to coat every strand.

Step Five: Add most of the grated mizithra and the Romano and toss again. If it looks tight, add a splash of the reserved pasta water to loosen it.

Step Six: Plate immediately, drizzle the remaining browned butter over each serving, and finish with more cheese, parsley and cracked pepper. Serve at once — this dish does not wait.

Variations

Garlic Mizithra. The other version on the menu. Add four cloves of thinly sliced garlic to the butter for the last minute of browning, watching closely so it doesn’t burn. Some versions also add sautéed mushrooms and crumbled bacon.

Manager’s Favorite. The restaurant lets you have two sauces on one plate. Serve half the spaghetti with browned butter and mizithra and half with meat sauce for the classic combination.

Browned butter and broccoli. Toss steamed broccoli florets through the finished pasta. It’s on the menu and it makes the dish feel like a meal.

Whole wheat spaghetti. The restaurant offers it, and the nuttiness of whole wheat suits browned butter better than you’d expect.

Recipe Tips

• Use a light-colored pan. You are judging this by color, and a dark pan hides it until it’s too late.
• Don’t walk away. The window between amber and burnt is under a minute.
• Keep the brown bits. Those toasted milk solids are the flavor. Don’t strain them out.
• Warm your bowls. This dish cools fast and the butter firms up as it does.
• Grate the cheese fine. Fine grating melts into the butter; coarse shreds sit on top.

Storing Instructions

• Refrigerator: 3 days, though it’s genuinely best fresh. The butter solidifies and the texture changes.
• Reheating: In a skillet over low heat with a tablespoon of butter or a splash of water, tossing constantly. The microwave makes it greasy.
• Freezer: Not recommended.
• Make ahead: Brown the butter up to a week early and refrigerate it. Rewarm gently before tossing. This is the one step you can do in advance.

What To Serve With It

Rich as it is, this wants something sharp alongside: a green salad with a tangy dressing, or steamed broccoli tossed right through. For the full Manager’s Favorite plate, put half a serving of copycat meat sauce on the other side of the bowl.

Mizithra FAQs

What is mizithra cheese? A Greek whey cheese made from sheep or goat milk. The aged version is hard, dry and salty, which is what makes this dish work.

What can I substitute for mizithra? Ricotta salata is closest. Pecorino Romano works and is easier to find. A two-to-one blend of the two is the best approximation.

Is it mizithra or myzithra? Both. It’s a transliteration from Greek and you’ll see it spelled either way, sometimes on the same shelf.

Why didn’t my butter brown? Usually heat too low, or a dark pan hiding the color. Medium heat, light pan, and watch for the foam to subside.

Can I use pre-grated cheese? You can, but it’s the main reason home versions disappoint. The anti-caking coating stops it melting properly.

Does this dish reheat? Poorly. Make what you’ll eat. If you must, reheat in a skillet with a little extra butter.

How much cheese does the restaurant use? More than you think. Be generous, then add more at the table.

More Old Spaghetti Factory Copycat Recipes

If this has you wanting the rest of the menu, here’s what else I’ve recreated at home.

The rich meat sauce is the other half of the Manager’s Favorite, and it’s the sauce most people pair with the mizithra when they can’t choose between them. For a starter, the toasted ravioli comes out golden and crisp in the oven or air fryer, with marinara for dipping.

For more restaurant favorites, browse all my copycat recipes or the dinner archive.

— It is not the official recipe, and no knowledge of proprietary recipes, processes, or ingredients is claimed or implied. The Old Spaghetti Factory is a registered trademark of its owner and Fork To Spoon is not affiliated with or endorsed by it.*