01 - Set the oven to 375°F.
02 - Combine flour and salt in a bowl. Rub in cold cubed butter until mixture resembles coarse crumbs. Stir in cold water to form a dough.
03 - Roll dough to 1/8-inch thickness on a floured surface. Cut into 3-inch rounds to fit mini tartlet pans. Press gently into pans, trim excess, and prick bottoms with a fork.
04 - Bake shells for 10 minutes. Remove from oven.
05 - Whisk eggs and sugar until smooth. Add lemon zest, lemon juice, heavy cream, and melted butter; mix thoroughly.
06 - Pour lemon filling into pre-baked shells. Bake 12 to 15 minutes until filling is set but slightly wobbly at center.
07 - Allow tarts to cool to room temperature. Remove from pans and garnish with lemon zest strips and optional fresh herbs. Serve chilled or at room temperature.