Lemon Tiramisu

Ingredients

• 1-1/4cupssugar
• 3/4cuplemon juice
• 1/2cupwater
• 6egg yolks
• 1/4cupflour
• 2cupsmilk
• 1/4cupcubedbutter
• 2ozfinely choppedwhite chocolate
• 1tbspfinely gratedlemon rind
• 1-1/2cupswhipping cream
• 1cupmascarpone cheese
• 24ladyfinger cookies,4 inch

Directions

1. In small saucepan, stir together 1/2 cup each of the sugar, lemon juice and water over medium heat until dissolved, about 5 minutes. Set aside.
2. In large bowl, whisk together egg yolks, flour and remaining sugar; set aside.
3. In heavy saucepan, heat milk over medium heat just until bubbles appear around edge; whisk half into egg yolk mixture. Whisk back into milk in pan; cook, stirring, until boiling and thickened enough to coat back of spoon, about 10 minutes.
4. Add butter and white chocolate; stir until melted. Strain through fine sieve into bowl. Add lemon rind and remaining lemon juice; stir until blended and smooth. Place plastic wrap directly on surface of custard; refrigerate until cold, about 2 hours.
5. In bowl, whip cream. Place mascarpone in large bowl; whisk in custard. Fold in whipped cream.
6. Arrange half of the ladyfinger cookies in a 13- x 9-inch glass baking dish. Generously brush cookies with half of the reserved syrup mixture. Spread with half of the mascarpone cream mixture. Repeat layers. Cover and refrigerate tiramisu for 4 hours.