In a medium size container - a bowl or mason jar - combine hot water, sugar and hibiscus powder. Whisk until sugar is completely dissolved.
In a cocktail shaker, combine all ingredients. Add ice and shake vigorously for a full 10 seconds.
Strain into a rocks glass with crushed ice.
Notes
When making the batch cocktail, use a large mason jar with a lid to shake or stir very well with a whisk in the serving container. Because the almond syrup is thick and the ice is cold, you want to make sure it gets distributed evenly.For the my sweet sensitive folks: if sweet cocktails aren't really up your alley, try adding an additional ½ cup water to the hibiscus simple syrup.