Mixed Mushroom Sauce Over Tagliatelle Pasta

Name: Mixed Mushroom Sauce Over Tagliatelle Pasta
Ingredients: 1 oz unsalted butter; 3 oz olive oil infused with white or black truffel essence; 1 oz dried Morels, re-hydrated in 4 oz warm water for 20 to 30 minutes, rough chopped. Save the liquid for the sauce.; 8 oz fresh Shitake mushrooms, sliced 1/4 . We added a few left over Porcinis.; 1 1/2 t cornstarch; 8 oz tagliatelle pasta; 3 cloves garlic, sliced thin; 1 T fresh chives, chopped; Salt, freshly ground black pepper and Parmesan cheese to suit at table