Make sure all the ingredients are at room temperature and the butter is very soft.
Drain the cottage cheese overnight if necessary, using a cheesecloth over a bowl.
Start by mixing the eggs with the sugar and vanilla essence until creamy.
Add the cottage cheese and incorporate well.
Add the butter and mix well.
Incorporate the flour and then add the sour cream.
Add the raisins and mix well.
Preheat the oven at 180 degrees.
Butter the baking tin well to avoid the pasca sticking to it, and dust with semolina. This will take the moisture out of the cake.
Add the composition into the baking tray, and bake for 40 minutes or so.
You can check if the pasca is ready by pushing a toothpick into the middle of it. If it comes out clean, it is ready.
Let it cool down in the baking tray for a couple of hours, then take it out. Mine came out beautifully.
Put it in the fridge, and serve it on Easter day decorated with powdered sugar on top.