Plum cookie is quick simple and delicious cookie
Heat the oven at 200 degrees. Daub brass, dimensions 20x23cm,with butter and cover with parchment paper. In biger dish blend with mixer fluor, soda and solt. In another dish mix butter and sugar (Brown and regular). Add half mixture of fluor, sour cream and stire it. Alsto add the rest of the fluor and stire. Put the mass in brass and level it with back of the spoon. Cutted plumps sprinkle with two spoons of fluor,then put them on dough on the brass.
Bake it in oven about 30 minutes untill goes light re, then cover it with foil and bake another 35minutes. When the cake is baked, frizzle it if you desire and sprinkle with dusted sugar.