1 oz of white Tequila (or Tequila)
1 splash of grenadine syrup
1-2 oz of white creme de cacao (or chocolate liqueur)
1-2 oz of milk
Combine all ingredients with ice in a cocktail shaker and shake vigorously. 'Paint' a large martini / wide rimmed glass with cold, thick fudge from a squeeze bottle. Start at the bottom of a very dry glass and spin the stem while moving the stream of fudge up to the top rim. Strain contents of shaker into painted glass. Then float a swirl of fudge on the top of this, and serve.