Soak the raisins in water. Let the butter sit at room temperature until it melts, then add a pinch of salt and beat with a mixer until well combined. The longer you beat, the crispier the cookies will be.

Add sugar and vanilla extract, mix well, then add the egg white and beat until the mixture is uniform.

Sift in the flour, mix well, then put the mixture into a piping bag and shape the cookies. Decorate with raisins on top.

Shape the cookies and bake at 350°F (175°C) for 15-20 minutes. You'll have fragrant, crispy cookies that melt in your mouth. Good luck!