1️⃣ Make the Crust
Whisk flour, sugar, and salt.
Cut in butter until mixture resembles coarse crumbs.
Add egg yolk and enough ice water to form dough.
Shape into disk, wrap, and chill 30 minutes.
Roll out and press into 9-inch tart pan.
Prick bottom with fork.
Bake at 375°F (190°C) for 18–22 minutes until lightly golden.
Cool completely.
2️⃣ Prepare Filling
Blend ricotta until smooth (food processor works best).
Mix in sugar, vanilla, and lemon zest.
Spread evenly into cooled tart shell.
3️⃣ Arrange Citrus
Pat citrus slices dry with paper towels.
Arrange in overlapping circular pattern over ricotta.
Warm honey slightly and brush lightly over fruit for shine.
Garnish with mint if desired.
4️⃣ Chill
Refrigerate at least 1 hour before slicing.