1. Preheat the oven to 375°F. Lightly coat a 9-inch springform pan with nonstick cooking spray, and set aside.
2. Place all the crust ingredients in a 2-quart mixing bowl and, using a hand mixer, beat until the mixture is well blended. Form the dough into a ball, and place it in the middle of the prepared pan. Press the dough against the pan, forming a crust on the bottom of the pan and about 1-1/2 inches up the sides.
3. Place all the filling ingredients in a 3-quart bowl, and beat with a wire whisk until the eggs and milk are thoroughly blended. Pour the mixture into the crust, and bake for about 45 minutes, or until the egg mixture is firm, and a wooden toothpick inserted in the quiche comes out clean.
4. Allow the quiche to cool at room temperature for 5 minutes. Unclasp the springform collar, and serve the quiche immediately, or cool before serving.
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