Frozen Chocolate Fudge Tart

Ingredients

• plus 2 tablespoons Atkins Quick QuisineTM Bake Mix
  1/2 cup
• unsweetened cocoa powder
  1/4 cup
• plus 1 teaspoon granular sugar substitute
  3 tablespoons
• unsalted butter

  cold and cut into pieces
  4 tablespoons
• cream cheese

  softened
  3 ounces
• sour cream
  1 tablespoon
• unsweetened chocolate

  finely chopped
  4 ounces
• vanilla extract

  divided
  2 teaspoons
• heavy cream

  divided
  2 1/2 cups
• granular sugar substitute

  divided
  1 1/2 cups
• instant decaffeinated coffee
  1 teaspoon
• cocoa powder
  1 tablespoon