Brew your espresso or strong coffee.
In a saucepan, heat milk and white chocolate chips, stirring until smooth.
Pour the chocolate mixture into your coffee and stir well.
Top with whipped cream, if desired.
Preheat the oven to 350°F (175°C).
In a mixing bowl, cream together butter and sugar.
Add egg, vanilla, and raspberry jam, then mix until smooth.
Stir in flour, baking powder, and salt until just combined.
Drop spoonfuls of dough onto a baking sheet.
Garnish each cookie with fresh raspberries.
Bake for 12-15 minutes, until golden brown.
Let the cookies cool, then serve with your white chocolate mocha.