Strawberry Tiramisu

1. Toss strawberries with sugar and lemon juice. Let sit 15 minutes until juicy.
2. Whisk egg yolks, strawberry syrup and sugar over a double boiler for 3 to 4 minutes until pale and slightly thickened. Cool slightly, then whisk in mascarpone and vanilla until smooth.
3. Quickly dip ladyfingers into espresso or strawberry juice and layer in a dish.
4. Spread half the mascarpone mixture over the ladyfingers, then spoon over half the strawberries. Repeat layers.
5. Chill at least 4 hours or overnight.
6. Finish with cocoa powder or crushed freeze-dried strawberries before serving.