20-Minute Garlic Butter Pasta
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Garlic butter pasta goes all the way back to sixth grade for me. It was one of the first ever recipes I learned to make. Back then, it was mostly butter, noodles, and the confidence of a kid who thought stirring pasta counted as a full cooking skill. My grown-up version has come a long way since then, with golden garlic, olive oil, chili flakes, and Parmesan pulling it together into something that actually impresses people. It’s still the recipe I reach for most when I forget to thaw the chicken, and everyone expects dinner to happen.
This easy garlic butter spaghetti has become my family’s go-to for late-night cravings, impromptu gatherings, and those nights when you want something genuinely satisfying without trying hard. Six simple ingredients are all it takes, and the whole thing is on the table in 20 minutes, which means it earns its place in the regular rotation without any debate.
How to Make Garlic Butter Pasta
This is a boil, sauté, and toss dinner, which is exactly what I want when the day has run long. The pasta cooks while the garlic warms in olive oil, then everything gets tossed together with chili flakes and Parmesan in about 20 minutes.
Check the printable recipe card at the bottom of the post for the full ingredient list, measurements, and step-by-step instructions.
Ingredient Notes
- Spaghetti: One of my best tips for perfect spaghetti is to salt the water well before cooking. Plain noodles are hard to fix after the fact.
- Garlic: Fresh garlic gives the oil the best flavor, so skip jarred garlic, if possible.
- Parmesan cheese: Grate it fresh for better flavor and a smoother finish.
Step-By-Step Instructions
- Boil the spaghetti.
- Infuse the butter.
- Season.
- Toss paste and sauce together.
- Finish with more butter.
- Garnish and serve.
Substitutions
- Spaghetti: Linguine works. Angel hair gives the dish a lighter feel but cooks faster, so keep an eye on it!
- Red pepper flakes: Fresh chili adds a brighter heat, while chili-infused oil spreads the warmth through the whole dish. Paprika gives color and a little smokiness without making it spicy.
- Fresh parsley: Basil gives the pasta a sweeter, more fragrant finish.
- Parmesan cheese: Pecorino Romano makes it saltier and sharper, while Asiago gives it a nuttier bite.
Expert Tips
- Thinly sliced garlic gives you more control than minced garlic. It cooks a little slower, so you have a better chance of catching it golden instead of bitter.
- Use an olive oil you actually like the taste of. It carries most of the flavor here, so a flat-tasting oil will make the whole pasta feel flat too.
- For a more traditional version, skip the butter and use ½ cup of good olive oil instead. I like the butter for a softer, cozier finish, but the olive-oil-only version is classic for a reason.
- Start the garlic when the pasta is about halfway done. The goal is hot pasta going straight into warm garlicky oil, not noodles waiting around in the colander.
- Drain the pasta when it is just shy of al dente. It will finish in the skillet and soak up the garlic butter sauce instead of just wearing it on the outside.
Storage & Reheating Tips
Let the pasta cool completely, then store it in an airtight container in the refrigerator for up to 4 days. Hold off on the fresh parsley and Parmesan until after reheating so they still taste fresh.
Reheat it in a skillet over medium heat with a splash of olive oil or water, stirring gently until warmed through. I don’t recommend freezing this one. The pasta can turn soft and the garlic butter sauce loses its best texture.
How to Serve Garlic Butter Pasta
Serve this garlicky pasta as the main dish with a salad (we love it with avocado salad), crusty sourdough, or garlic bread for catching every bit of the buttery olive oil sauce. It also works as a simple side for grilled shrimp, seared scallops, parmesan-crusted chicken, or garlic butter steak bites when you want a heartier meal. For a casual dinner party, add a chilled glass of Pinot Grigio or Sauvignon Blanc and call it done.
More Easy Sides To Try
Garlic Butter Pasta for Busy Weeknights
Ingredients
- 12 ounces spaghetti
- 4 tablespoons butter divided
- 3 tablespoons olive oil
- 6 cloves garlic thinly sliced
- ½ teaspoon red pepper flakes
- ¼ teaspoon salt plus more for pasta water
- ¼ teaspoon ground black pepper
- ¼ cup fresh parsley chopped, for garnish
- ¼ cup grated Parmesan cheese for garnish
Instructions
- Cook the pasta al dente.
- Cook the garlic in butter and olive oil.
- Stir in the red pepper flakes, salt, and black pepper.
- Add the drained spaghetti to the skillet and toss until the noodles are coated in the garlic butter sauce. Melt remaining butter over the pasta.
- Top with parsley and Parmesan, then serve warm.
