No Bake Chocolate Truffle Pie

Bahan-bahan (8 porsi)

• 12 ounce semisweet or dark chocolate chips
• 1½ cups heavy whipping cream, (divided)
• ½ teaspoon instant espresso powder ((optional, but it bring out the flavor of the chocolate!))
• ¼ cup sifted powdered sugar
• 1 tablespoon vanilla extract
• ¼ teaspoon salt
• One 9-inch prepared store-bought chocolate cookie crumb crust ((see notes below to make homemade))
• additional whipped cream and chocolate shavings, (for serving (if desired))