While the "original" dry Martini was equal parts gin and dry vermouth, as we lead up to American Prohibition we see the ratios begin to change a bit. While the "equal parts" version is still popular, we are seeing several references to 3 to 2, and even 3 to 1 ratios being used. The version I list here is a 3 to 1 ratio, which is the furthest that I like to take a Martini, because it sill allows the vermouth to participate in the flavors.