Firing Squad

Ingredients:

• 2oz (60ml) Blanco Tequila (must be 100% Agave)
• 3/4oz (22ml) Grenadine
• 3/4oz (22ml) Lime Juice
• 2 dashes Angostura Bitters
• 1oz (or to taste) Soda Water
• Garnish - Lime wheel
• Glass - Collins

Instructions:

1. Add all ingredients, except for the soda, into to a mixing tin and shake over ice.
2. Double-strain into a chilled cocktail glass. 
3. Top up with soda
4. Garnish with a lime wheel

Notes

I tried this drink with crappy off-the-shelf grenadine and though it was missing some flavor. Since then I've got some sweet home-made grenadine that has a much deeper flavor, so this could still be a winner.

Source: Kindredcocktails.com

Photo: Angosturabitters.com