This is a recipe I got off one of the PBS cooking shows (I don't remember 
which one) which I have not yet tried, but it looked good. I saved it 
because I'm always on the lookout for new crock pot recipes.

Fish Eye Pudding

1 cup large pearl tapioca (what you have there)
4 cups of water

    Soak tapioca in water overnight in a large crock pot container.

    Next morning, add

3 cups brown sugar
pinch salt

    Cover; Cook on low for 12 hours.

    After 12 hours, add 

1.5 tsp vanilla
1 cup walnuts

    Stir, turn into bowl, and cover top with whipped cream.

The large pearls of tapioca are the "fish eyes".