In a large bowl, mix whole wheat flour, almond flour
, sugar, salt and baking powder. Using a pastry blender, cut butter into flour mixture until it is broken down into small pieces. Add almond extract and mix with a fork until dispersed. Add just enough cold water to form into a dough ball (if too watery, add more flour to stiffen up again). Wrap in saran wrap and refrigerate for 30 min.