Combine all of the ingredients except the alcoholic ginger beer in a mixing glass with ice and stir.
Fine-strain into a pilsner, and top with the ginger beer.
*Cinnamon syrup: In a small saucepan, add 2 cups of water and 9 oz of broken-up cinnamon sticks (approximately 4 sticks), and bring to a boil. Simmer for 10 minutes, and strain out the cinnamon sticks. Bring the water back to a boil, add 1.5 cups of sugar, and stir until sugar is dissolved.