Spice Inc. Mudslides

Directions

1. 1
   Melt the chopped chocolate and butter together in a metal bowl over a medium saucepan of hot, barely simmering water.
2. 2
   Remove from heat, whisk in the vanilla, and set aside to cool.
3. 3
   Sift the flour, baking powder, and salt together into a large bowl or onto a sheet of parchment paper.
4. 4
   In the bowl of an electric mixer, whisk the eggs and sugar at medium-high speed until they form smooth, glossy ribbons that rest on the batter for a moment after the whisk is pulled out of the batter.
5. 5
   Using a rubber spatula, fold in the cooled chocolate mixture and then the sifted ingredients, until just mixed.
6. 6
   Then fold in the chocolate chips, walnuts, and cocoa nibs.
7. 7
   Divide the dough into four equal portions.
8. 8
   Place each portion on a piece of waxed paper and roll into a log (or long rectangular slab) about 1 1/2 inches thick.
9. 9
   Freeze in the waxed paper for at least 1 hour or up to several days.
10. 10
    When ready to bake, preheat the oven to 325F.
11. 11
    Cut the frozen logs into 1/4-inch-thick slices and place on parchment-lined baking sheets, allowing at least 2 inches between cookies for room to spread.
12. 12
    Bake for 1315 minutes, until they are slightly crusty on the outside but still gooey in the middle.
13. 13
    Let cool completely on the baking sheets.