Mini Lemon Tarts

1 . Stage

Mix flour, butter, and salt together in the bowl of an electric stand mixer, or with a pastry blender, until dough becomes crumbly. Add ice water, 2 tablespoons at a time, until the consistency is smooth. Wrap dough in plastic wrap and chill for 30 minutes.

2 . Stage

Preheat the oven to 400 degrees F (200 degrees C). Grease a 12-cup cupcake pan.

3 . Stage

Roll out dough on a cutting board and cut into 3-inch circles using a scalloped cookie cutter. Place dough into the prepared pan, pressing down the sides to fit.

4 . Stage

Combine egg yolks, sugar, lemon juice, butter, and lemon zest in a heavy, non-aluminum saucepan. Cook over medium-low heat, stirring constantly, until butter is melted and filling thickens slightly. Do not allow to boil. Remove from heat and transfer to a bowl and cool, 15 to 20 minutes. Pour filling into the dough cups.

5 . Stage

Bake in the preheated oven until filling is set, 15 to 18 minutes. Let cool for 20 to 30 minutes before serving.