Chocolate Hazelnut Tarts | Go Bold With Butter

Ingredients

• 2 cups all-purpose flour
• 2/3 cup powdered sugar
• ½ teaspoon salt
• 1 cup cold unsalted butter, diced
• 1 egg white, whisked with a splash of water
• 1 ½ cups heavy cream
• 1 tablespoon hazelnut liqueur (optional)
• 2 teaspoons vanilla extract
• 12 ounces dark chocolate chips
• 2 tablespoons unsalted butter
• ½ teaspoon espresso powder
• 1 ½ cups toasted and skinned hazelnuts, roughly chopped
• 2 teaspoons flaky sea salt