Fruit Filling For Japanese Fruitcake

2 tb Flour

1 Juice of 3 lemons

1 c Sugar

1 cn Pineapple (20 oz)*

2 Egg yolks

1/2 c Pecans chopped

* - pineapple should be crushed & drained.  Combine all ingredients in top half of a double boiler over, not in, simmering water and cook, stirring frequently, until mixture thickens. It should be quite thick. Remove from heat and allow to cool, stirring occasionally.