Chocolate Glaciers

1 ½ c all-purpose flour
2/3 c cocoa powder
1 tsp baking powder
¼ tsp kosher salt
1 stick butter, softened
¾ c granulated sugar
½ packed light brown sugar
3 large eggs
2 tsp vanilla
1 ¼ c powdered sugar

Whisk flour, cocoa, baking powder, and salt in a medium bowl until blended.

In another bowl, beat butter, granulated sugar, and brown sugar with mixer until just blended, about 1 minute. Beat in eggs one at a time, then vanilla. With mixer on low, beat in flour mixture until just incorporated (dough should be very sticky). Chill dough 30 minutes.

Preheat oven to 350F. Place powdered sugar on a large plat. Put 4 teaspoons of dough onto the plate. Roll each clump in sugar to lightly coat, then shape into a ball; re-roll balls in sugar until heavily coated. Place balls 2 inches apart on a cookie sheet; repeat with remaining dough until it has all been used. (We got 23 cookies). Bake for 11 minutes or until tops are cracked and cookies are set around the edges but still soft in the middle.