
This creamy Parmesan garlic sauce transforms ordinary pasta into a restaurant-worthy meal in just 15 minutes. The velvety texture and rich flavor profile make it perfect for busy weeknights when you need something comforting but don't have hours to spend in the kitchen.
I developed this recipe after my daughter requested "restaurant pasta" at home. After several attempts to create that perfect balance of creamy richness and garlic flavor, I finally nailed it. Now it appears on our table at least twice a month by popular demand.
Ingredients
- Unsalted butter: Creates a rich foundation and allows you to control the saltiness
- Fresh garlic cloves: Provide bold aromatic flavor that dried versions simply cannot match
- Italian seasoning blend: Saves time while adding complexity, using herbs like oregano, basil, and thyme
- All-purpose flour: Creates the perfect thickening roux for a silky smooth consistency
- Vegetable broth: Adds depth while keeping the sauce vegetarian-friendly
- Heavy cream: Delivers luxurious richness that makes this sauce truly special
- Freshly shredded Parmesan cheese: Avoid pre-shredded varieties, which contain anti-caking agents
- Fresh parsley: Brightens the flavor and adds a pop of color
- Kosher salt: Has a cleaner flavor than table salt and dissolves beautifully
- Fresh cracked black pepper: Adds subtle heat and complexity
Step-by-Step Instructions
- Create The Flavor Base:
- Melt butter slowly over medium-low heat to prevent browning. The butter should foam slightly but never smoke. This gentle heat will infuse the garlic flavor perfectly without burning.
- Develop The Aromatics:
- Add your minced garlic, Italian seasoning, and initial seasoning. Keep the heat modest, allowing the garlic to release its oils without browning, which would create bitterness. Stir continuously for the full minute to ensure even cooking.
- Form The Roux:
- Sprinkle the flour evenly across the pan and whisk vigorously until completely incorporated. This roux will thicken your sauce while eliminating any floury taste. The mixture should look like a thick paste with a slightly golden hue.
- Create The Base Sauce:
- Pour the vegetable broth in a slow, steady stream while whisking constantly. Any pause in whisking risks lumps forming. The sauce will initially appear thin but will begin thickening as it simmers. Keep the heat moderate to prevent scorching.
- Begin Thickening:
- Allow the mixture to simmer gently, watching as the liquid reduces and thickens. The sauce should coat the back of a spoon but still flow freely. This slow reduction concentrates the flavors while the starch molecules in the flour fully expand.
- Add Richness:
- Introduce the heavy cream in a slow pour while continuing to whisk. Follow with the Parmesan cheese, adding it gradually rather than all at once to ensure smooth incorporation. The parsley adds both color and a fresh herbal note.
- Perfect The Consistency:
- Maintain low heat while stirring frequently to prevent the cheese from sticking to the bottom. The sauce will continue to thicken as it cooks. For a thinner sauce, add a splash more broth or, for thicker, reduce slightly longer.
- Taste And Balance:
- Sample the sauce and adjust seasonings. Remember that Parmesan adds saltiness, so taste before adding additional salt. Pepper provides a subtle warmth that complements the creaminess perfectly.

Garlic is truly the star ingredient here. I learned through numerous iterations that too much creates bitterness while too little leaves the sauce flat. Four cloves create that perfect balance of flavor without overwhelming the palate. My husband, who typically reaches for hot sauce with most meals, enjoys this exactly as is—a true testament to its perfect seasoning.
Storage and Reheating
This sauce keeps beautifully in an airtight container in the refrigerator for up to 4 days. When reheating, do so gently over low heat with a splash of milk or cream to reconstitute the texture. Stir frequently to prevent scorching. I do not recommend freezing, as the cream and cheese can separate during thawing, resulting in a grainy texture.

Perfect Pairings
While fettuccine is the classic pairing, this versatile sauce works wonderfully with any pasta shape that can trap the creamy goodness. Try it with penne, rigatoni, or cavatappi. Beyond pasta, it makes an excellent sauce for chicken, particularly with sautéed mushrooms, or as a delicious topping for steamed vegetables like broccoli or asparagus.
Healthier Variations
For a lighter version, substitute half-and-half for the heavy cream and reduce the butter to 3 tablespoons. The sauce will be slightly less rich but still wonderfully creamy. You can also incorporate 1/4 cup of white wine before adding the broth, which adds complexity and cuts through some of the richness. For extra nutrition, stir in a handful of baby spinach during the final minute of cooking.
Frequently Asked Questions
- → How can I ensure the sauce is lump-free?
Slowly pour the vegetable broth while whisking constantly to prevent lumps.
- → Can I use other cheeses besides Parmesan?
Yes, you can substitute Parmesan with Romano or Asiago for a different flavor profile.
- → Is this sauce suitable for dietary restrictions?
This sauce is vegetarian-friendly and can be made gluten-free by using a gluten-free flour substitute.
- → How do I store leftovers?
Store leftover sauce in an airtight container in the refrigerator for up to 3 days. Reheat gently on low heat.
- → What dishes pair well with this sauce?
This sauce is perfect for pasta, vegetables, or as a base for casseroles and baked dishes.