3/4 fluid ounce vodka (such as Absolut®)
3/4 fluid ounce lemon juice
2 1/2 teaspoons white sugar, or to taste
1 lemon, cut into wedges
Combine vodka and lemon juice in a shot glass. Sprinkle 1/2 teaspoon sugar on top.
Place 2 teaspoons sugar in a small plate; dip lemon wedges in sugar. Suck on a sugared lemon after drinking the shot.