Preheat oven to 325°. In a large bowl, cream butter and sugar until light and fluffy. Beat in vanilla. In another bowl, whisk flour, cocoa and coffee granules; gradually beat into creamed mixture. Stir in pecans. Shape dough into 1-in. balls; place 2 in. apart on ungreased baking sheets.
Bake 14-16 minutes or until set. Cool on pans 1-2 minutes. Roll warm cookies in confectioners' sugar. Cool on wire racks.
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