1/4 oz. Grenadine
1/4 oz. Lemon Juice
1/2 oz. Vodka

Pour vodka into shot glass, add lemon juice or extract and stir
until mixed. Slowly add grenadine so it sinks to the bottom,
making the bottom half red/pink and the top a milky white. It
should look like blood on the bottom, and skin on the top when
poured correctly.