Pre-chill a coupe glass. Prepare a skewered raspberry garnish and set aside.
Add the gin, fresh lemon juice, and raspberry jam directly into the base of a cocktail shaker.
Stir the ingredients together until the jam is fully dissolved.
Add ice and shake vigorously for 10–12 seconds.
Fine-strain into the chilled coupe glass.
Garnish with the skewered raspberry and serve immediately.
Using jam instead of a flavored syrup or liqueur is the defining technique here - it adds body, natural pectin, and a more complex fruit character than a straightforward raspberry syrup ever could. Stirring to dissolve the jam before adding ice is essential to achieving a smooth, evenly integrated shake.
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