Sangarita

This "visually gorgeous," margarita-style drink is a big brunch seller at New York restaurant Joe & Misses Doe, say bartender/co-owner Jill Dobias. She recommends using a dark, tannic wine such as Merlot, Malbec, or a rich Cabernet for the float.
You can skip the float if you preferred, but the red wine tampers the drink's natural sweetness, while adding complexity and visual interest.

Ingredients:
Coarse Salt (like Kosher Salt) to Rim the Glass
1 Lime Wedge to Rim the Glass PLUS lime wheel for garnish
Ice Cubes
1 1/2 oz Lime Juice
1 1/2 oz Simple Syrup (1:1 ration of water to sugar, bring to a boil to mix, cool before using)
1 1/2 oz Blanco Tequila
Red Wine (such as Merlot, Malbec, or Cabernet Sauvignon to Float)

Directions:
1. Pour Salt into a shallow bowl or plate. Run the lime wedge halfway around the rim of a margarita glass or large wine goblet. Gently roll the moistened outer edge of the glass in the salt.
2. In an ice-filled cocktail shaker, combine the lime juice, simple syrup, and tequila.
3. Shake well and pour into the prepared glass.
4. Pour red wine over the rounded bowl of a spoon to "float" it on top of the drink and garnish with the lime wheel before serving!

(Recipe from Shake. Stir. Sip. by Kara Newman)