Crust: Mix flour, salt,sugar together in 20 cm pieplate, in measuring cup mix milk with oil, with fork, beat until blended well ;add to flourmix at once and start mixing all together with fork, until it is damp, than ,with fingers, spread out the dough over the whole pieplate. Prick entire surface a couple times with fork. Filling: Put cottage cheese in blender and blend until smooth, mix in sour cream, eggs, sugar and cornstarch. Blend all well. Spread filling over crust and bake in 180ºC , oven for 50 minutes. Cool; than spread the piefilling on top. Refridgerate until serving. This is a low fat version of cheese cake and you can put blueberry pie filling on top if you want too. Recipe came from my motherinlaw from Ohio.