Combine sugars and butter. Add vanilla extract, water and vinegar; mix well.
In a separate bowl, combine flour, baking powder and soda, followed by salt.
Combine the two mixtures together. Add raisins, which have been lightly rolled
in flour, and oats; mix together well. Add walnuts or pecans if desired.
Roll dough into small balls with about 6-9 cookies to each ungreased cookie
Bake for 10-12 minutes. Cookies won't look ready at 10 minutes but take
out and let sit for 5 minutes in order to be chewy.