Method
Preparation
Preheat your oven to 350°F (175°C).
Mix the dry ingredients in a mixing bowl by combining the flour, cocoa powder, powdered sugar, and salt.
Cut in the cold, cubed butter using a pastry cutter or your fingers until the mixture resembles coarse crumbs.
Incorporate the egg yolk and gradually add cold water until the dough comes together.
Press the dough into a 9-inch tart pan evenly and prick the bottom with a fork. Chill in the refrigerator for about 15 minutes.
Bake the crust in the preheated oven for 15 minutes and let it cool completely.
Heat the heavy cream over medium heat until it begins to simmer.
Pour the hot cream over the chopped chocolate and let it sit for 2-3 minutes, then stir until smooth.
Pour the chocolate ganache into the cooled tart crust and smooth the top.
Refrigerate the tart for at least 2 hours to allow the ganache to set.
Arrange the sliced strawberries on top of the tart and garnish with optional mint leaves and powdered sugar.
Slice the tart and serve it chilled or at room temperature.
Notes
For an elevated experience, serve with a dollop of whipped cream.