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1
Preheat oven to 350F.
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2
Wrap outside of 9-inch-diameter springform pan with 2 3/4-inch-high sides with 3 layers of heavy-duty foil.
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3
Finely grind shortbread cookies and pecans in processor.
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4
Add melted butter and process until crumbs are moistened.
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5
Press crumb mixture onto bottom (not sides) of prepared pan.
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6
Bake crust until golden, about 15 minutes.
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7
Cool crust completely on rack.
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8
Reduce oven temperature to 325F.
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9
Using electric mixer, beat cream cheese in large bowl until smooth.
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10
Add mascarpone and flour; beat until smooth, occasionally scraping down sides of bowl with rubber spatula.
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11
Gradually add sugar and beat until smooth.
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12
Beat in vanilla and lemon juice.
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13
Add eggs 1 at a time, beating just until blended after each addition.
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14
Pour filling over crust in pan.
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15
Place springform pan in large roasting pan.
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16
Pour enough hot water into roasting pan to come halfway up sides of springform pan.
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17
Bake cheesecake until top is golden and cake is almost set (center 2 inches will still move slightly when pan is gently shaken), about 1 hour 15 minutes.
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18
Cool cake on rack 1 hour.
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19
Refrigerate uncovered overnight.
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20
(Can be made 2 days ahead.
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21
Cover and keep refrigerated.)
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22
Arrange Candied Pecans decoratively atop cake.
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23
Cut cake into wedges.
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24
Serve with Dulce de Leche Sauce.
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25
*Italian cream cheese, available at Italian markets and many supermarkets.