In medium bowl, sift together cocoa, flour, baking powder & salt. (measure ingredients before sifting).
Combine peanut butter with Kahlua warmed in the microwave. It will be kind of gluey.
In large bowl, mix Kahlua and peanut butter.
Combine flour mixture with egg mixture. (Add nuts, if using them)
Bake 35-40 minutes at 350ºF.
Note: Because of the egg whites in this recipe, it is NOT Vegan. If you know of a substitute for the egg whites that would make this recipe vegan please email me. Thanks!