Here's an old (and I mean old) virginia recipe but I caint say how chewy they will turn out..you can always add more butter iffin you want em more chewy and less flour/bakin powder.
2/3 cup flour
1/2 teasp. bakin powder
1/4 teasp. salt
7 tablespoons butter (melted)
2 squares chocolate
2 eggs (beaten well)
1 teasp. vanilla
Add butter to melted chocolate & stir em up good.
Cream ( beat the sugar and eggs until it forms a thick cream.)
the sugar & the eggs and then add the chocolate.
Mix em well..then add the flour, salt & vanilla.
Mix them real good.
Use shortenin to grease your bakin pan and bake & 350.
Let me know how you like em.