THE GRILL House Martini

1 ½ ounce Plymouth Gin
1 ½ ounce Tanqueray Gin
¼ ounce Noilly Prat Dry Vermouth
¼ ounce Dolin Blanc Vermouth
¼ ounce spring water
Batch everything, add to a glass bottle and place in the freezer for 24 hours
Pour into a coupe or cocktail glass
Garnish with skewered Cerignola olives or a lemon twist