How to Make Chocolate Strawberry Tart

• Preheat your oven to 350°F (175°C).
• Combine the flour, cocoa powder, powdered sugar, and salt in a mixing bowl.
• Mix in the cold, cubed butter until the mixture resembles coarse crumbs.
• Stir in the egg yolk and add cold water until the dough forms.
• Press the dough into a 9-inch tart pan and chill for about 15 minutes.
• Bake the crust for 15 minutes and let it cool completely.
• Heat the heavy cream in a small saucepan until it just begins to simmer.
• Pour the hot cream over the chopped chocolate and let it sit for 2-3 minutes.
• Add the optional butter and vanilla extract, stirring until smooth.
• Pour the ganache into the cooled tart crust and smooth the top.
• Refrigerate the tart for at least 2 hours to set the ganache.
• Arrange the sliced strawberries on top of the set ganache.
• Garnish with mint leaves and a dusting of powdered sugar, if desired.
• Slice the tart and serve either chilled or at room temperature.