Combine all dry ingredients. Dissolve coffee in 2 tbsp. l boiling water.
Beat the eggs with a mixer along with sugar in a lush mass. It is not necessary to separate into proteins and yolks.
Without stopping to beat, pour 2 tbsp. Into the eggs. l boiling water, then vegetable oil. After pour half the dry mixture and mix until smooth.
Pour in coffee, mix and add the rest of the dry mixture. Stir until smooth.
Transfer the dough into a baking dish and bake at 180 degrees for 35-40 minutes. Cool the biscuit, cut into several pieces and use to assemble the cake.
Chocolate biscuit with boiling water according to this recipe turns out to be quite dense, but at the same time tender and airy just the perfect combination for making cakes. Cooking is quite simple and fast, the biscuit has a rich chocolate flavor and a porous texture, it is easily cut into shortcakes and just melts in your mouth.