Take a Cocktail glass and fill it up to 3 / 4 part with milk.
Take a cocktail shaker and add 4 ice cubes in it and then pour 1 and a 1/2 ounces of vodka, 1 and a 1 / 2 ounces of coffee liqueur and 1 and a 1 / 2 ounces of half and half in it. Then, turn on the shaker to shake the contents briefly.
Take a cocktail strainer and strain the contents of the shaker into the cocktail glass which has milk in it.
Top up the glass containing all the contents with cola.
The Colorado Bulldog Cocktail is ready. Serve it to your guests and wait for the compliments to pour in!