In a small bowl, soak the raspberries in 1 teaspoon of lemon juice and roll in 1 teaspoon sugar. Use the remaining sugar and lemon juice from this to rim the chilled martini glass.
Muddle the raspberries in the bottom of a shaker, add the remaining ingredients, including the 1/2 ounce of lemon juice.
Fill the cocktail shaker with ice and shake vigorously until well combined.
Pour into the chilled martini glass rimmed with lemon juice and sugar.
Garnish with a long lemon peel shaped into a bow.
For fun, I first poured the martini into a clear glass ornament for serving.