In a saucepan, combine milk, eggs, sugar, and cornstarch.
Whisk continuously over medium heat until the mixture thickens into a smooth custard.
Add Mascarpone and Lemon:
Remove from heat and let cool slightly.
Stir in mascarpone (or cream cheese) and lemon zest until fully combined and creamy.
Assemble the Tart:
Pour the cream filling into your prepared tart shell.
Smooth the top with a spatula.
Chill in the refrigerator for at least 2–3 hours until set.
Serve:
Decorate with fresh fruit or a dusting of powdered sugar if desired.
Slice and enjoy!
Serving and Storage Tips
