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Preheat the oven to 375 degrees.
														 
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Beat the butter in a medium mixing bowl with an electric mixer until very creamy.  Add 1/2 cup of the powdered sugar, the vanilla, and salt and beat on medium until smooth.
														 
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Sift the flour and cocoa powder over the mixture, then add the chopped pecans. Beat on medium just until a cohesive dough forms, scraping down the bowl as necessary.
														 
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Working with 1 rounded teaspoon of dough at a time, press dough into flat disks in your hand or on a lightly floured workspace. The dough will be a little crumbly; just press it together with your hands.
														 
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Top each disk with 1 Hershey’s kiss, then bring the dough up around the kiss so it’s completely covered.  Roll the dough gently on the counter or between your hands to smooth the edges.
														 
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Arrange balls 1 inch apart on ungreased, unlined baking sheets.  Bake for 10 to 12 minutes until the dough looks set.
														 
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While cookies are in the oven, place the remaining powdered sugar in a shallow bowl.  When cookies come out of the oven, immediately transfer 2 or 3 at a time to the bowl and roll to coat with sugar.
														 
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Set cookies on a wire rack to cool completely. Once the cookies are cool, roll them in powdered sugar again.