Mains / Roasted Garlic Pasta

Roasted Garlic Pasta

Published January 16, 2025

A creamy roasted garlic pasta made without cream or cheese – this sauce relies on the emulsifying nature of garlic with starchy pasta water.

Yield: 2 people

Prep time: 10 minutes

Total time: 20 minutes

Spaghetti with a light sauce on a plate, topped with basil leaves, at a table setting.

Garlic is a natural emulsifier – it helps oil and water combine – so mashing roasted garlic and mixing with olive oil, lemon, and pasta water makes for a thick, creamy sauce that coats the pasta wonderfully. It’s an almost invisible sauce but believe me, you’ll taste it. That garlic packs a punch. If you like garlic, you’ll love this roasted garlic pasta.

It’s a simple dish if you have roasted garlic already prepped but is otherwise a little time consuming. If you’re organised enough to plan your meals in advance (good on you) then you can roast the garlic in advance and keep it refrigerated until needed.

For big garlic fans I recommend my garlic pizza bread made with spelt flour, fantastic tahini garlic sauce, and garlic green beans. I could eat this pasta every day of the week but you do need to love the taste of garlic to enjoy it!

Ingredients

Roasted garlic pasta ingredients with labels.

Ingredient Notes and Substitutions

  • Pasta: I almost always use einkorn or spelt pasta and prefer a long pasta like spaghetti or tagliatelle for this dish, but you could use a short type too. Use gluten-free pasta if needed.
  • Olive oil: you will certainly taste the olive oil, so choose one that you like. I recommend something quite bold and peppery for an extra flavour boost.
  • Chili pepper: optional, omit if you don’t like heat.

Step by Step

Garlic spaghetti steps 1 to 4, mashed garlic, mixed sauce, added to pasta, and mixed.

Step 1: mash the roasted garlic and add the olive oil, lemon, and seasoning.

Step 2: mix in the reserved pasta water.

Step 3: add the sauce to the drained pasta immediately.

Step 4: stir well to combine and serve.

Recipe Notes

Mash the garlic and get the sauce ready to the point where it only needs pasta water while the pasta is cooking. You don’t want to leave your cooked pasta in the strainer or drying out in the pot while making the sauce.

I always roast a head or two of garlic while I’m baking something else, and then keep it refrigerated to use in recipes like this, or beetroot hummus, to mix into salad dressings, and so on.


How to Store

Storage: the dressed pasta can be kept in a sealed container in the refrigerator for a day or two, and reheated with a splash of water. It isn’t as good after being stored and the pasta will absorb some of the sauce.

Freezing: this recipe doesn’t freeze well. Freeze roasted garlic instead and thaw when needed to make the pasta fresh.

Expert Tips

  • Season to taste: first, be sure to season the pasta water well, and adjust the amount of salt in the garlic sauce as needed to suit your preference. Reduce if adding any cheese.
  • Stir very well: you could even get a whisk out, but a good mix with a fork will do the trick. The garlic needs to be very well mashed and the oil emulsified to make a smooth sauce – otherwise it will separate.
  • Don’t forget the pasta water: it’s necessary to further thicken the sauce and will help it to adhere to the pasta.

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Spaghetti with a light sauce on a plate, topped with basil leaves, at a table setting.
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Roasted Garlic Pasta

Prep Time: 10 minutes
Cook Time: 10 minutes
Total Time: 20 minutes
Servings: 2 people
Print Recipe

Description

A creamy roasted garlic pasta made without cream or cheese – this sauce relies on the emulsifying nature of garlic with starchy pasta water.

Ingredients

  • 250 grams (9 oz.) long pasta about half a standard package
  • 1-2 heads roasted garlic
  • 3 tablespoons olive oil
  • ½ teaspoon sea salt to taste
  • ½ teaspoon black pepper to taste
  • ¼ teaspoon chili flakes optional
  • Zest of a lemon
  • 120 ml (½ cup) pasta water reserved just before straining the pasta

Instructions

  • If you don't have roasted garlic ready, you'll have to make that first.
  • Start the pasta, cooking according to package instructions in a large pot of well salted water.
    250 grams (9 oz.) long pasta
  • While the pasta is cooking, prepare the roasted garlic sauce. Add the roasted garlic to a bowl, making sure to remove any of the papery peel, and mash very well with a fork.
    1-2 heads roasted garlic
  • Add the olive oil, salt, pepper, chili flakes (if using), and lemon zest to the garlic. Use the fork to mix well.
    3 tablespoons olive oil, ½ teaspoon sea salt, ½ teaspoon black pepper, ¼ teaspoon chili flakes, Zest of a lemon
  • Just before straining the pasta, reserve about 120 ml (½ cup) of the cooking water – you can use a coffee cup for this. Add that water to the garlic mixture and whisk well to combine. It should form a thick, glossy sauce.
    120 ml (½ cup) pasta water
  • Stir the garlic sauce into the strained pasta and mix very well. Serve immediately. Roasted garlic pasta is best fresh but can be refrigerated for a day or two.

Notes

Two full heads of roasted garlic will make for a very strong sauce – I like one and a half, but you may prefer to use just one.
This makes quite a large portion for two people, and could serve up to four as a side.

Nutrition

Serving: 1 | Calories: 646kcal | Carbohydrates: 99g | Protein: 19g | Fat: 23g | Saturated Fat: 3g | Polyunsaturated Fat: 3g | Monounsaturated Fat: 16g | Sodium: 610mg | Potassium: 337mg | Fiber: 1g | Sugar: 0.2g | Vitamin A: 79IU | Vitamin C: 4mg | Calcium: 81mg | Iron: 5mg

Nutrition is provided as a courtesy and is an estimate. If this information is important to you, please have it verified independently.

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