Chestnut Paste Sandwich Cookies (makes 14)

How to make it

1. 1

   Mix the unsalted butter, powdered sugar, and salt, then add the eggs in additions.

2. 2

   Sift in the cake flour, whole wheat flour, and instant coffee and bring it together into one mass.

3. 3

   Roll it out 3 mm thick, rest it in the refrigerator for 1 hour, then cut out 28 rounds.

4. 4

   Bake at 325°F (160°C) for about 15 minutes and cool them completely.

5. 5

   Melt the white chocolate and heavy cream together and let them cool. Soften the butter and add the chestnut paste, the ganache, the gold rum, and salt to make the cream.

6. 6

   Pipe the chestnut buttercream onto one cookie, set chestnut paste in the center as the filling, and cover it with another cookie.

7. 7

   Chill or freeze them and eat them cold.

You can fix this

If it hasn't burned or stuck to the pan, it can still be fixed.

• If the batter or cream is stiff, add milk a little at a time; if it is loose, add flour the same way. Once it has set, it cannot be adjusted.