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1
Place porcini mushrooms in small bowl.
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2
Pour 2 cups hot water over.
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3
Let stand until mushrooms soften, about 25 minutes.
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4
Using slotted spoon, transfer mushrooms to work surface and coarsely chop.
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5
Discard soaking liquid.
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6
Heat olive oil in heavy large pot over medium-high heat.
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7
Add porcini, crimini and portobello mushrooms, minced garlic and bay leaf.
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8
Saute until mushrooms are brown and tender, stirring often, about 10 minutes.
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9
Add Marsala and simmer until almost all liquid evaporates, scraping up browned bits, about 1 minute.
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10
Season mushroom mixture to taste with salt and pepper.
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11
Remove from heat.
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12
(Mushroom mixture can be prepared 1 day ahead.
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13
Cover and refrigerate.)
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14
Cook pasta in large pot of boiling salted water until just tender but still firm to bite, stirring occasionally.
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15
Drain well.
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16
Mix beef stock and whipping cream into mushroom mixture and simmer 3 minutes.
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17
Add 1 cup Parmesan cheese, butter and drained pasta; toss to coat.
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18
Cook until sauce coats pasta, stirring frequently, about 2 minutes.
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19
Season to taste with salt and pepper.
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20
Serve, passing additional grated Parmesan separately.
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21
*Dried porcini mushrooms are available at Italian markets, specialty foods stores and many supermarkets.