01 - Pulse flour, powdered sugar, and salt in a food processor. Add cold cubed butter and pulse until mixture resembles coarse crumbs. Add egg yolk and 1 tablespoon cold water, pulsing until dough begins to come together. Add additional water only if necessary for dough to form.
02 - Gather dough into a ball, flatten into a disk, wrap tightly in plastic, and refrigerate for 30 minutes to allow gluten to relax.
03 - Preheat oven to 350°F. Roll out chilled dough on a lightly floured surface and press into six 4-inch tart pans. Prick bottoms with a fork to prevent puffing.
04 - Line each tart shell with parchment paper and fill with pie weights. Bake for 12 minutes. Remove weights and parchment, then continue baking 8-10 minutes until golden brown. Cool completely before filling.
05 - Combine milk, heavy cream, and honey in a saucepan. Heat over medium heat, stirring occasionally, until just beginning to simmer.
06 - Whisk together egg yolks, cornstarch, vanilla extract, and salt in a medium bowl until smooth and slightly thickened.
07 - Gradually whisk hot milk mixture into egg yolks to temper. Return mixture to saucepan and cook over medium heat, stirring constantly, until thickened about 3-4 minutes. Transfer to bowl, cover with plastic wrap touching surface, and cool to room temperature.
08 - Whisk eggs, egg yolks, sugar, lemon juice, and lemon zest in a saucepan until combined.
09 - Cook mixture over medium-low heat, stirring continuously, until thickened 5-7 minutes. Do not allow to boil. Remove from heat.
10 - Whisk in cubed butter until completely melted and smooth. Pour into bowl, cover with plastic wrap touching surface, and refrigerate until set.
11 - Spoon cooled honey custard into tart shells, smoothing tops with an offset spatula. Create an even layer of lemon curd over the custard base.
12 - Arrange fresh strawberry slices decoratively on top of each tart. Garnish with fresh mint leaves if desired. Serve chilled for best texture and flavor.