Step 1: Heat oven to 350°F.
Step 2: Mix flour, sugar, and salt in a bowl.
Step 3: Add butter. Mix until crumbly like sand.
Step 4: Add egg yolk and water. Mix to make dough.
Step 5: Roll dough flat. Put it in tart pan.
Step 6: Make small holes with a fork. Chill 20 minutes.
Step 7: Bake for 20 minutes. Let it cool.
Step 8: Mix eggs, sugar, lemon juice, and zest.
Step 9: Cook on medium heat. Stir all the time.
Step 10: Add butter. Keep stirring until it gets thick.
Step 11: Pour lemon mix into tart shell.
Step 12: Chill tart in fridge for 2 hours.
Step 13: Put strawberries on top before serving.
Step 14: Sprinkle sugar if you want to.