Step 1: Make the Tart Dough
In a bowl, combine flour, powdered sugar, and salt.
Cut in cold butter until mixture resembles coarse crumbs.
Add egg yolk and 1 tablespoon cold water. Mix just until dough forms.
Add an extra tablespoon of water if needed.
Form dough into a disk, wrap, and chill for 30 minutes.
Step 2: Bake the Tart Shells
Preheat oven to 350°F (175°C).
Roll dough to about ⅛-inch thickness.
Cut circles and press into mini tart pans or a muffin tin.
Prick bottoms lightly with a fork.
Bake 12–15 minutes, until lightly golden.
Cool completely before filling.
Step 3: Make the Lemon Curd
In a saucepan, whisk eggs, sugar, lemon juice, and zest.
Cook over medium-low heat, stirring constantly for 8–10 minutes until thickened.
Remove from heat and stir in butter until smooth.
Strain through a fine mesh strainer for a silky texture.
Allow to cool slightly.
Step 4: Assemble
Spoon lemon curd into cooled tart shells.
Refrigerate for at least 1 hour to set.
Garnish with fresh berries, whipped cream, powdered sugar, or mint leaves.