Add all the ingredients into shaker with ice and shake. Strain into a highball glass over fresh ice. Top with the soda water. Garnish with a grapefruit peel.
To make the cinnamon syrup, toast and break up two stick of cinnamon. In a medium saucepan, add cinnamon, 4 cups of sugar and 2 cups of water. Bring to a boil, cover and let stand for 20 minutes, strain.
To make the turmeric tea, add 1 tsp turmeric powder and 2 cups of water to a medium saucepan and simmer for 10 minutes. Strain.