here is a finished oreshki. look how delicious that looks!
you start out by rolling bits of the dough and putting the balls into the oreshki cookie half cavities. then close the oreshnitsa (cookie pan), and grillbake them on both sides over an open flame for about 5mins each or until golden brown (you can check them if needed but after awhile the timing becomes natural).
when each batch is finished dump them into a bowl to cool. while they are cooling, assemble the filling in another bowl.
take a can of boiled condensed milk (boil the can unopened in water for about 2 hours or more), nuts, hazelnut paste, and mix together. take the bowl of halves and clean the edges on them so they don't have extra dough pieces. use the crumbs you trimmed off to add to the filling paste for more crunch. fill each halve exactly halfway with filling (don't overfill or you won't be able to press them together)
assemble the oreshki by firmly pressing the two filled halves together (this is why you are careful not to overfill, the filling is VERY thick and pastey and will not smoosh out the sides, instead the cookies will shatter because they aren't very strong) after assembling all of the halves, eat the finished oreshki and enjoy your hard work! oreshki means "little nut" which is why these traditional cookies are shaped like little nuts! i will have a real recipe up later this month after our cookie party.