If pairing with pasta, begin boiling your preferred noodles first, ensuring they are drained and kept hot so they’re ready to receive the sauce once it’s completed.
To serve with zucchini noodles, spiralize one medium-large zucchini (7–8 inches in length), yielding approximately 4 cups of ‘zoodles’. Cut into shorter strands for easier serving.
Place the zucchini strands in a microwave-safe bowl and cook in 30-second intervals for up to 2 minutes, checking for doneness. Avoid overcooking to maintain texture—zoodles should be just tender, not mushy.
Drain any excess moisture thoroughly. Pat dry using kitchen towels to eliminate residual water that could otherwise thin the sauce upon mixing.
In a broad, heavy-bottomed skillet set over medium heat, melt the butter along with the minced garlic, allowing it to gently infuse for a minute or two.
Pour in the heavy cream, stirring constantly as the mixture warms. Allow it to reach a light simmer and bubble gently for 2–3 minutes.
Gradually stir in the freshly shredded Parmesan and Asiago cheeses. Continue stirring as the sauce thickens and begins to simmer again, creating a smooth, cohesive texture.
Taste the sauce and adjust seasoning with salt and freshly ground black pepper. Serve immediately over your choice of hot pasta or a low-carb base like zoodles or spaghetti squash.