Blueberry-Lemonade Martini

To make measuring easy, use a shot glass.
1 handful of blueberries
2 parts lemon juice
1 part simple syrup (equal parts sugar and water brought to a roiling boil, then cooled)
2 parts vodka

Muddle your blueberries in a tall glass along with an ice cube. Add the lemon juice, vodka, and simple syrup. Add more syrup to taste, the lemon and blueberries are both bitter fruits so you may like to use more sweetener. Next, add more ice and shake to blend. Strain the ice over a martini glass, or in my case the same glass you muddled the blueberries in because I don't yet own martini glasses. Enjoy!