Easy Chocolate Pots de Creme

Bahan-bahan (4 porsi)

• 1 1/2 cups half and half
• 1 teaspoon espresso powder (optional)
• 4 large egg yolks
• 6 ounces bittersweet chocolate, broken into pieces (plus extra shavings for garnish)
• 3 tablespoons granulated sugar
• 1 teaspoon vanilla extract
• 1/2 teaspoon fine sea salt
• 1/2 cup cold heavy whipping cream
• 2 tablespoons powdered sugar
• 1 tablespoon amaretto