How should the oil rubs with sugar (best with a mixer or in a food processor).

Add sour cream, whisk to dissolve the sugar

Divide the resulting mass in half. In one add the vanilla and leave – it's cream. In the second half, add flour and baking powder, turns out tender, light dough.

Put it into the form and bake for 50 minutes at 180 – 200 deg. (the temperature of point about, I finally bought a new stove, and a thermometer there, and the degree is determined by the scale at which I still really do not understand... this is the first time I baked it)))

The corner I cut and ground into crumbs

Well, then, when the biscuits cool slightly, cut it into three pieces (it is very soft and crumbly, so the middle layer I have assembled from pieces... but in the context it even more interesting the result) and prosleeves cream (I even did not impregnated, so the delicate dough). On the top layer pour the chips. The cream is not very thick.

Next, it is best to put the cake overnight in the refrigerator so that the biscuits are better soaked, and the cream thickens. All. Bon appetit!