In a bowl add butter and brown sugar.

Beat them together till creamy and fluffy. Add honey and beat them again.

In another bowl sift flour, salt, and baking soda together.

Add the dry ingredients to the butter mixture and beat it till the mixture resembles crumbs. Do not overbeat the mixture.

With the help of spatula fold the mixture gently and then with light hands knead into dough.

Cover the dough and refrigerate for 15 minutes.

Divide the dough into four portions. Take one portion and make ball and flatten it on the working surface. Dust the surface with flour.

Roll the dough into big oval shape and into 2-4 mm thickness.Cut the edges first and then divide the rectangle into half and then cut rectangular strips of around 1" x 2".

Gently lift each strip and place it on the baking tray lined with baking paper or grease a baking tray. Try to place the same size pair together. With the help of fork or toothpick make holes at equal distance on rectangle strips. Sprinkle the sugar on the strips. I have used raw sugar. You can used the regular white sugar.

Bake them for 15 minutes in preheated oven @ 170 C. Remove them on wire rack and let them cool. Now start preparing the chocolate buttercream filling for the biscuits.

In a bowl add butter, icing sugar and cocoa powder.

Beat them with an electric beater on low speed for 2 minutes. Now add 3 tsp boiling water and vanilla essence.

Beat the mixture for 4-5 minutes on high speed till light and fluffy.

Scrap from the edges. The chocolate buttercream filling is ready for use.

Once the biscuits are cooled. Take the same size two biscuits. Apply 1mm layer of the prepared chocolate buttercream filling with small spatula.

Place the other same size biscuit over it and press it lightly. The sandwich biscuit is ready. Similarly, repeat making other sandwiches. Arrange them on a plate.

The biscuits are ready to serve. Serve them with hot tea or coffee. Or Store them in an airtight container.