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1
Preheat oven to 350F.
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2
Butter and flour 15 x 10 x 1-inch jelly roll pan.
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3
Finely grind nuts with flour in processor.
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4
Transfer to medium bowl.
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5
Mix in baking powder, spices and salt.
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6
Using electric mixer, beat butter and sugar in large bowl until well blended.
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7
Beat in yolks and extracts.
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8
On low speed, add dry ingredients alternately with milk, beating just until combined (batter will be thick).
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9
Using clean dry beaters, beat whites in another large bowl until stiff peaks form.
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10
Fold 1/3 of whites into batter to lighten.
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11
Fold in remaining whites.
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12
Spread batter in prepared pan; smooth top.
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13
Bake until tester inserted into center comes out clean, about 25 minutes.
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14
Cool cake on rack 20 minutes.
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15
Run sharp knife around cake to loosen.
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16
Turn cake out onto foil-lined rack; cool.
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17
Stir white chocolate in top of double boiler over barely simmering water until melted.
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18
Cool to barely lukewarm.
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19
Using electric mixer, beat cream cheese and butter in large bowl until smooth.
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20
Beat in white chocolate, then sugar and extracts (if frosting is too soft, chill until firm enough to spread).
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21
Using serrated knife, cut cake crosswise into three 5x10-inch rectangles.
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22
Place 1 cake rectangle on platter.
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23
Spread 3/4 cup frosting over.
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24
Drizzle 1/4 cup preserves over; spread over frosting.
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25
Top with second cake.
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26
Spread 3/4 cup frosting over.
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27
Drizzle 1/4 cup preserves over; spread over frosting.
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28
Top with third cake.
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29
Spoon 1 1/4 cups frosting into pastry bag fitted with 1/4-inch star tip.
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30
Spread remaining frosting over top and sides of cake.
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31
Drizzle remaining preserves over top of cake; spread evenly to cover top.
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32
Refrigerate cake just until frosting begins to firm, about 20 minutes.
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33
Pipe frosting in 7 diagonal lines atop cake, spacing apart.
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34
Repeat in opposite direction, piping 6 lines and forming lattice.
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35
Press chopped nuts onto sides of cake.
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36
Pipe line of frosting around top edge of cake where nuts and preserves meet.
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37
(Can be prepared 2 days ahead.
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38
Cover with dome of foil; chill.
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39
Let stand 2 hours at room temperature before serving.)