Peppermint Cheesecake... Peppermint Cheesecake   Ingredients 7 ounces chocolate graham crackers, finely crushed 8 tablespoons unsalted butter, melted 16 ounces cream cheese, softened 2 ounces sour cream 3/4 cup sugar 2 teaspoons clear vanilla extract 1 teaspoon peppermint extract 2 large eggs 1 drop pink or red gel food coloring (optional) 12 dark chocolate chips