Pineapple tarts - from fatmah

http://fooddiary.blogsome.com/2007/12/02/pineapple-cookies-nanas-tart/
Pineapple Cookies (aka Nanas Tart)
adapted from a recipe by Fatmah Bahalwan
250 gr margarine
250 gr butter
100 gr confectioners’ sugar
4 egg yolks
700 gr all-purpose flour
4 Tablespoons dry milk powder
Glaze:
3 egg yolks, stir lightly
1 teaspoon cookie glaze—optional
Preheat the oven to 3oo°F. Lightly butter several baking sheets. Mix together flour and dry milk powder.
Mix margarine and butter with confectioners’ sugar and eggs until just combined. Gradually beat in the flour mixture, using low speed, until well combined (You could test the dough by roll it into a ball. If you’re able to do it, stop mixing) If you want, leave the dough in the refrigerator for about 30 minutes.
Roll dough into 1-inch ball, flatten it, fill it pineapple jam and enclose it back into a ball. Place in greased baking sheets about 1 inch between the cookies. Do the same until all the dough is used.
Bake in the oven about 30 minutes, brush the cookies with glaze, bake about 8-10 minutes more or until the cookies look shiny and dry. Remove cookies from baking sheets and cool on wire racks. Store in airtight containers.