Yield: 4 dozen
Heat oven to 350 degrees (F). Line a cookie sheet with parchment paper.
In a large bowl, mix butter, chocolate, granulated sugar, and brown sugar. Blend in the eggs and vanilla.
In a separate bowl, mix flour, cocoa powder, baking powder, and salt. Add mixture to the sugar mixture and mix well.
Roll dough into walnut-sized balls, about 1 tablespoon. You might need to moisten your fingers.
Pour extra granulated sugar into a pie tin. Pour powdered sugar into a separate pie tin. Coat each ball with granulated sugar and then with powdered sugar. Place balls about 2 inches apart on the parchment paper.
Bake 10 - 12 minutes. These will look slightly gooey in the "cracks" when removed from the oven. That's fine. Do not overbake.
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