In a small bowl, mix all of the wet ingredients until evenly combined.

In a larger bowl, mix together the dry ingredients until evenly combined.

Fold in wet ingredients to dry, and mix until a clumpy dough is formed.

Chop chocolate bar into small-ish pieces, and fold into dough.

Line a pan with parchment paper (I found that a bread loaf pan was the perfect size). Press dough firmly down into pan, being sure to press down on the sides as well.

Put pan in the freezer and let cookie dough set for an hour.

After an hour, take cookie dough out of the freezer and cut into slices.

Enjoy!