Iced Cinnamon Coffee Recipe: Fill a cocktail shaker with 5 oz double-strength coffee (try Starbucks® Guatemala Antigua), 1 tbsp sweetened condensed milk and a pinch of ground cinnamon. Stir well. Add 1 cup ice. Cover the cocktail shaker and shake vigorously for about 2 minutes. Fill a glass with ½ cup ice. Strain the coffee mixture into the glass. Serve and enjoy!