I grew up on them and still make them. Mine has an "apron" around the side and it's "real" cast iron. I have Mother's pan too - hers has no apron because it was designed to fit in the hole of a cook stove when the stove lid was removed. Very old. Beware of the new knock-offs in the stores (made in China).
A church in my hometown makes them for a breakfast every summer and they fry them ahead of time and freeze them. 4 on a paper plate, microwave about 20 seconds, serve with sausage, syrup, butter. We roll cold ones in white sugar - great with coffee as a treat.
Just a dab (about 1/2 tsp.) shortening is enough for my pan probably because it's well seasoned. Remember, add shortening EVERY time, not just for the first batch of 7. Don't over-fill the cups for best results because they will puff up.
I looked so forward to eating in Solvang but I was disappointed. Nothing like home. I decided to shop the stores and I looked for "anything" made in Denmark. Found nothing, so I asked for help on this. They couldn't think of anything either. I went store to store and came up empty. HaHa.
Here's the church ladies method (it's as good as the old fashioned version so I use it)
32 oz box Hungry Jack pancake mix
6 eggs
4.5 cups milk (I use evaporated milk mixed with 1/2 and 1/2)
Combine lightly and let sit 20 minutes before using. Stir lightly and bake in pan heated up. I heat mine slowly and back off the heat when it begins to smoke.