Mix separately vegetable oil (odorless!), Warm water and lemon juice.
Combine the liquid and dry parts. Mix. Beat with a blender for 2-3 minutes. Pour the dough into a split metal or silicone mold. The finished chocolate “biscuit” will be very tender and tiny, this must be taken into account. Place the baking sheet in the oven and bake the lean “biscuit” for 30 minutes at 180 degrees.
Leave the finished chocolate “biscuit” in the oven until it cools completely. Then remove carefully. I recommend leaving the cake in a dry place for 12 hours so that it dries slightly – this way the chocolate biscuit will be easier to cut into cakes for later use.