Pour vodka, fresh lemon juice, and simple syrup into the glass.
Stir gently with a bar spoon to combine the ingredients.
Top with club soda.
Garnish with a lemon wheel and cherry.
Notes
Serve the drink right away for the best taste and fizz.Fresh lemon juice works better than bottled juice.One medium lemon yields about 1 oz of juice.Store-bought simple syrup works fine.You can make it at home by mixing equal parts sugar and hot water.A high-quality vodka improves the taste.Keep vodka in the freezer for an extra cold drink.Club soda can be replaced with seltzer water.Don't use tonic water as it changes the taste.