I got the recipe from a dutch website. Pear cake recipe

He has a lot of great recipes on there.

Basically the butter is made of:

• 200 gr almond paste, home-made or bought
• 150 gr butter, room temperature
• 100 gr soft brown sugar
• zest of ¼-½ lemon
• ¼ tsp salt
• 4 eggs, at room temperature
• 185 gr flour
• 2 tsp baking powder
• 3 (hand) pears, peeled and core removed

And when the cake is finished you cover it with heated apricot jam.