Preheat the oven to 200 degrees Celsius (392 degrees Fahrenheit).
Whisk flour and milk together with an electric mixer.
Whisk in eggs and the rest of the ingredients.
Pour the batter into a siphon bottle, add a gas cartridge, and shake a few times. Fill
Mix salmon, cream cheese, and chopped dill together in a bowl.
Grease the holes in the Æbleskiver pan with some of the melted butter and heat it.
Spray about 1 tbsp. of batter into each hole when the butter starts to bubble. Quickly add 1/2 tbsp. of filling in the center of each Æbleskiver and spray with another 1 tbsp. of batter.
Bake the Æbleskiver until the bottom is lightly browned and crispy, about 3 minutes. Use two wooden skewers to turn all the Æbleskiver and bake them until the other side is brown, about 3 minutes more.
Place the finished Æbleskiver on a dish and keep them warm in the oven while you bake the last Æbleskiver.