In a microwave, melt 1 cup of the chocolate chips, set aside to cool
In a mixing bowl, mix the butter and sugar thoroughly until creamy
Add eggs, one at a time, beating well after each addition.
Add melted chocolate chips and vanilla, beat until well incorporated
Combine flour, baking powder, and salt. Gradually add to the creamed mixture
Stir in remaining chocolate chips and walnuts
Cover and refrigerate for 2 hours
Preheat Oven to 350 degrees
Roll cooled dough into 1 inch balls then roll in confectioner's sugar
Place 2 inches apart on ungreased baking sheets
Bake for 10-12 minutes or until edges are set and centers are almost set.
Cool for 10 minutes
Remove to wire racks
Yields approximately 4 dozen
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