Carefully measure Cara Cara orange juice into a mixing glass over ice. Add simple syrup and stir thoroughly. Strain into a Coupe champagne glass. Top with as much The Bitter Housewife Orange Bitters & Soda as you wish. We used 1 oz. Place two bushy green fennel fronds (about 2 inches long) in the palm of your hand and clap hard to crush the fronds and release the aromatics. Place fronds across the liquid to one side.
NOTE: If you prefer, this cocktail can be served over ice. Simply follow the same instructions, pour over ice in a rocks glass and follow the same steps with the fennel.