So we helped ourselves and tried this yummy recipe we found in Swedish daily Dagens Nyheter.

Ingredients for 2 people:
2 apples
50 g almond paste (or marzipan)
2 teaspoons calvados (a French apple 'apple brandy') or sherry (optional) and
1 egg white.

Preheat oven to 437 F. Butter an oven-safe pan.
Do not peel the apples, but core them with a knife and a teaspoon, making sure the bottom stays intact. Mix the almond paste with the egg white (don’t beat it) and the calvados/sherry if you are using it. Put the apples in the pan and fill the cavities with the mixture. Put the pan in the oven and bake for 20-30 minutes, depending on how firm the apple is. Let the apples cool a bit and serve them with ice cream or whipped cream.