Fit for Dracula himself! Sweet homemade grenadine serves as the "blood" in this inspired Halloween cocktail made with vodka, grapefruit juice, and fresh lime juice.
Syrup: Bring agave, pomegranate juice, and beet to a boil in a saucepan. Strain, then return mixture to pan and bring to a boil. Cook over medium-high heat until syrup has reduced to 3/4 cup, 5 minutes. Let cool completely. Syrup yields enough for 8 and can be refrigerated up to 1 month.
Cocktail: Pour vodka and both juices over ice. Sweeten with syrup to taste.