Preheat oven to 350°F. Prepare 2 baking sheets with parchment paper and set aside. Add 1/4 cup granulated sugar to a small bowl, also set aside.

In a microwave safe bowl, melt chocolate in 30 second intervals. Stir after each interval. Repeat until fully melted.

Using mixer, beat together butter, 1/2 cup granulated sugar and brown sugar until light and fluffy.

Add egg and vanilla and mix.

Add in salt and baking powder and mix in.

Mix in cocoa powder, followed by melted chocolate.

Add one cup of flour and mix, then add remainder and mix until fully incorporated.

Using a small or medium cookie scoop, scoop all the dough balls onto one of your baking sheets and place them in fridge for just 5-10 minutes, if your dough is too sticky. (You can also place the cookie dough not rolled into balls for chilling for 15 minutes and then scoop or roll your dough balls out, but sometimes the dough is hard to scoop). Once they have firmed up, remove from fridge and roll balls in granulated sugar. Place sugar coated dough balls on prepared baking sheet, spaced 2 inches apart.

Bake for 10 minutes. Immediately press an unwrapped chocolate kiss into each cookie. Immediately transfer cookies to a wire rack to cool completely and allow chocolate to set in a cool place.

Once chocolate has completely set, cookies may be stored in an airtight container.