
Old Tom gin is a lightly sweetened style of gin, historically the bridge between malty Dutch genever and bone-dry London gin. It has no legal definition, so sweetness varies by maker.
Use it where you want juniper up front with a softer, rounder edge. It is already sweetened, so a sour or a Collins made with it needs less sugar than with dry gin.
Add 2:1 syrup a few drops at a time, tasting as you go. Stop at about a third of a barspoon per 50 ml.
Made with malt wine, so heavier and grainier. It turns the drink bready.
"Old Tom is a brand"
It's a style, not a distillery's name; many producers make one.
Tuxedo
Old Tom gin, Dry vermouth