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1
Preheat oven to 350 degrees.
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2
Place garlic in a small baking dish.
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3
Drizzle with 1 tablespoon of the olive oil.
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4
Cover with foil and bake until garlic is very soft, about 1 hour.
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5
Squeeze the garlic from the skins and set aside.
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6
Heat 1 tablespoon of the olive oil in a small skillet.
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7
Add shallots and saute until they begin to caramelize, about 3 minutes.
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8
Set aside.
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9
Cook the spinach and white fettuccines separately in salted water until tender but firm.
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10
Drain and place each in a separate large bowl.
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11
Whisk together the roasted garlic, 1 teaspoon of the salt, 1/2 teaspoon of the white pepper, thyme, nutmeg, 1 1/2 cups of the half-and-half and 4 of the eggs.
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12
Pour over the white fettuccine and mix well.
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13
Whisk together the shallots, 1 teaspoon salt, 1/4 teaspoon white pepper, 1/2 cup half-and-half and 2 eggs.
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14
Pour over the spinach fettuccine and mix well.
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15
Grease a 10-inch round springform pan with the remaining tablespoon olive oil.
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16
Coat the pan with the Parmesan.
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17
Place half of the white fettuccine mixture in the bottom of the pan.
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18
Top with the spinach fettuccine mixture.
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19
Cover with the remaining white fettuccine mixture.
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20
Cover the pan with aluminum foil.
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21
Bake for 45 minutes.
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22
Let rest for 5 minutes.
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23
Run a small knife around the edge of the pan to loosen.
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24
Unmold, cut into wedges and serve.