A very fino martini

For ➊
4 cl Bombay gin*
0.5 cl fino sherry

Stir gin and sherry over ice-cubes in a mixing glass.
Strain the drink (without ice!) into a pre-cooled cocktail glass. Garnish with a lemon twist.

*Optionally, replace gin with top vodka.
**Some recipes recommend 4 cl gin  + 2 cl manzanilla or fino