Mrs. Field's Black And Whites

Ingredients

2 1/4 c all purpose flour
1/2 c unsweetened cocoa powder
1/2 ts baking soda
1/4 ts salt
1 c dark brown sugar
3/4 c sugar
1 c butter
3 eggs
2 ts pure vanilla extract
5 1/4 oz semisweet chocolate bar
5 1/4 oz chocolate bar
2 apar bake

Instructions

a little longer. ----