Ingredients for the cookies: 250 g cornmeal, 150 g flour, 150 g softened butter, 200 g powdered sugar, and a little vanilla extract.
For the filling: 80 g softened butter, 100 g powdered sugar, a little vanilla extract, and about 6 tsp raspberry jam.
Preheat the oven to 180°C (350°F) for conventional baking or 170°C (340°F) for fan-forced baking and line a baking sheet with parchment paper.
Cream the butter, powdered sugar, cornmeal, flour, and vanilla into a smooth, soft dough. Transfer the dough to a piping bag fitted with a star tip and pipe about 20 small rosettes, 3–4 cm (1–1.5 inches) in diameter, onto the baking sheet.
Bake the cookies for about 10–15 minutes, until the edges are light golden brown. Then let them cool completely.
For the cream, beat the butter, powdered sugar, and vanilla until smooth and fluffy. Spread some raspberry jam on half of the cookies, spread buttercream on the remaining cookies, and carefully sandwich two cookies together.
Finally, lightly dust with powdered sugar. Enjoy!