Preheat oven to 375 degrees.

Cream butter and sugars until light and fluffy. Add eggs and vanilla, beating well. Add flour, ground oatmeal, salt, baking powder and baking soda. Beat until combined. Stir in white chocolate chips and macadamia nuts.

Shape dough into 1 to 1 1/2-inch balls and place 2-inches apart on ungreased cookie sheets (I use AirBake insulated sheets). Bake at 375 for 10-12 min or until light golden brown. Cool for 1 minute on sheet. Remove to rack to cool completely.

Makes approx 4 doz cookies.