Rehydrate the dried porcini by submerging them in boiling water for 10 minutes. Drain the mushrooms, carefully reserving 75 ml of the flavorful soaking liquid, then mince the mushrooms into a fine, meat-like texture.

In a cold sauté pan, combine the olive oil, minced garlic, red pepper flakes, parsley, and a pinch of salt. Place over medium-low heat and cook gently for 5 minutes until the aromatics are fragrant and soft.

Increase heat to medium-high. Add the minced mushrooms, tomato paste, and a generous amount of freshly cracked black pepper. Sauté for 3 minutes to caramelize the paste and mushrooms.

Boil the tagliatelle in salted water until al dente. Before draining, reserve approximately 420 ml of the starchy pasta water.

Add 360 ml of the reserved pasta water and the reserved mushroom soaking liquid to the sauté pan. Simmer for 3 minutes to allow the flavors to meld and thicken slightly.

Lower the heat. Stir in the grated Parmesan until melted, then incorporate the cream. Toss in the cooked pasta, stirring vigorously for 1-2 minutes until the sauce emulsifies and coats the noodles perfectly.

Serve immediately, finished with an extra drizzle of olive oil, a dusting of fresh Parmesan, and a garnish of fresh parsley.