01 - Fill two old-fashioned glasses with crushed ice to chill.
02 - Combine orange juice, pineapple juice, lime juice, orgeat syrup, and simple syrup in a cocktail shaker. Shake vigorously for 10–15 seconds until well blended.
03 - Strain the mixture evenly over the ice-filled glasses.
04 - Slowly pour a splash of grenadine into each glass, allowing it to settle for a layered effect.
05 - Decorate each glass with an orange slice, a maraschino cherry, and a sprig of fresh mint.
06 - Serve immediately with a straw and enjoy this refreshing alcohol-free Mai Tai.