PINEAPPLE UPSIDE DOWN CAKE IN A GLASS!!!! Ingredients ice 1 splash grenadine syrup 1 (1.5 fluid ounce) jigger cake-flavored vodka 3 ounces pineapple juice 1 maraschino cherry Directions 1. Fill a glass with ice. 2. Splash grenadine over ice. 3. Pour cake-flavored vodka and pineapple juice over the ice; stir. 4. Garnish with maraschino cherry to serve.