Want a sweeter drink? Use 1 full oz of hazelnut liqueur and 1/2 an oz of vodka.
To make multiple shots at once, line shot glasses on a table and measure out the liquor into each. Add a lemon wedge on top and serve.
Alternatively, you can line the rim of the glass with sugar instead of the lemon. However, we find that using the lemon as a sugar spoon gives you a much better flavor experience.