Preheat the oven to 325˚F. Line a large baking sheet with parchment paper.,
STEP 2
In a large bowl, whisk sugar and 2 whole eggs together by hand until the mixture turns pale yellow, about 2 minutes. Mix in almond extract until combined. In a separate medium bowl, sift flour, cocoa powder, baking powder and salt together. Add flour mixture and chocolate chips to the egg mixture and stir with a wooden spoon until everything has been incorporated.,
STEP 3
Lightly flour the prepared baking sheet and transfer the dough onto the baking sheet. The dough will be sticky, don’t worry, it is meant to be a sticky dough so you get the signature crunchy texture. Sprinkle a little flour on top of the dough, then form into an even rectangle about 4-inches wide and 14-inches long, adding more flour as needed while you shape the dough.,
STEP 4
Lightly beat the remaining egg white, then brush the exposed surfaces of the dough with egg white. Sprinkle with granulated sugar and bake for 30 minutes.,
STEP 5
Remove from oven and carefully slide the parchment onto a cutting board. Using a serrated knife, cut the dough into 1-inch thick slices. Spread the slices out onto the sheet pan and bake again for 10 minutes, turning the cookies over halfway through baking time.