Beefeater Summer Martini Posted on May 5, 2010 by Gin Queen By Tim Stones 3 parts Beefeater Summer Gin 1 part Dry Vermouth Garnish: Blackberry and Raspberry on a cocktail stick Glass: Coupe glass In a mixing glass, stir Beefeater Summer over ice with the Dry Vermouth until well chilled. Garnish and serve.