This version doubles down on garlic by using both roasted and fresh cloves. The roasted garlic brings a sweet, mellow background flavor, while the fresh garlic added at the start gives the sauce some bite. Together they make a sauce with a lot more depth than a basic Alfredo.
Garlic Alfredo Sauce
A garlic-forward take on classic Alfredo sauce, using both roasted and fresh garlic for deep flavor.
Ingredients
- 1 whole head garlic, plus 2 extra cloves, minced
- 1 tablespoon olive oil
- 1/2 cup unsalted butter (1 stick)
- 2 cups heavy cream
- 2 cups Parmesan cheese, grated
- 1/2 teaspoon salt
- 1/4 teaspoon black pepper
- 1 tablespoon chopped fresh parsley, for serving
Instructions
- Heat your oven to 400 degrees F. Slice the top off the head of garlic, drizzle with olive oil, wrap in foil, and roast for 35 to 40 minutes, until soft. Let it cool, then squeeze the cloves out of their skins.
- Melt the butter in a large skillet over medium heat.
- Add the 2 minced fresh cloves and cook for 1 minute, until fragrant.
- Mash the roasted garlic into a paste and stir it into the butter.
- Pour in the heavy cream, stir, and bring to a gentle simmer for 3 to 4 minutes.
- Lower the heat and add the Parmesan a handful at a time, whisking until smooth.
- Season with salt and pepper, then taste and adjust.
- Toss with hot pasta right away and top with parsley.
Notes
Roasting the garlic first removes the sharp bite of raw garlic and leaves a sweeter, deeper flavor. If you are short on time, skip the roasting step and use 4 to 5 cloves of fresh minced garlic instead, added with the butter.
Do not let fresh garlic brown in the butter. Browned garlic turns bitter and will throw off the whole sauce.
Why Use Two Kinds of Garlic
Raw garlic cooked briefly in butter gives a sharp, fresh flavor. Roasted garlic is completely different, it turns soft, sweet, and almost nutty once it spends time in the oven. Using both in the same sauce gives you layers of garlic flavor instead of just one note. If you only have time for one, fresh garlic cooked in the butter is the faster option and still works well.
Ingredient Notes
This recipe follows the same base as our classic Alfredo sauce, with garlic as the main change. Everything else, the butter, cream, and Parmesan, works the same way.
Serving Suggestions
This sauce holds up well against bold proteins. Try it with chicken Alfredo or shrimp Alfredo, both pair well with the extra garlic flavor here. It is also good over fettuccine, the wide noodles hold onto the sauce well.
Storage
Store in a sealed container in the fridge for up to 4 days. The garlic flavor actually deepens a bit overnight. Reheat slowly over low heat with a splash of cream or milk, see our how to reheat Alfredo sauce page for the full method.
Common Mistakes to Avoid
- Burning the fresh garlic. It only needs about a minute in the butter. Browned garlic turns bitter fast.
- Skipping the roasting step but expecting the same flavor. Fresh garlic alone gives a sharper, more direct bite than the roasted version. Both are good, they are just different.
- Adding the roasted garlic paste too early. Stir it in with the fresh garlic, not at the very end, so it has time to blend into the butter base.
Make It Ahead
The roasted garlic can be made up to 3 days ahead. Roast a whole head, let it cool, and store the peeled cloves in a small sealed container in the fridge. This cuts the active cooking time for this recipe down to about the same 20 minutes as our classic sauce, since the long roasting step is already done.
Scaling Up for a Crowd
This recipe doubles well for a larger group. Roast two heads of garlic instead of one, and use a wider pan for the cream so it has room to simmer evenly. The cook time stays about the same, you are mainly just working with larger quantities at each step.