I make perogies and freeze them. In order to cook them, I have always boiled them and then sautéed them in butter, with onions.
Tonight, I was making a one dish sauerkraut, boneless chop dinner in a little 2 qt. PC, I recently purchased from Midnight box. I decided to go ahead and throw in the frozen perogies. Did the whole thing under pressure for 8 min., cooling naturally. Pulled out the perogies and sautéed them a little to give them a little color.
From now on, it is frozen perogies steamed in the PC, instead of boiled on water on top of the stove. They are much nicer steamed.