Steam/saute the onions in a small amount of olive oil until softened.
Meanwhile core the cabbage and cut or shred the leaves into thin strips. Toss the cabbage with the salt in a large mixing bowl and crush it with your hands.
Stir in the onions and dill. Transfer the vegetables to a prepared 9" pie plate (I used cooking spray)
Beat the eggs, then stir in the sour cream and mayonnaise. Add the flour and baking powder and mix to form a batter.
Pour over top the cabbage and onions. I stirred mine all together, but in the original recipe it looks like she spread the batter over the top.
Garnish with the chives and sesame seeds.
Bake for 30 minutes or until the top turns golden.
Notes
Fresh dill will make a big difference to the flavor of your cabbage pie, but if you can't find any, substitute 2 tablespoons of dried dill leaves.