Box butter cake mix
Light brown sugar
Make cake using mix, eggs and 1/2 cup butter. Follow recipe on box but bake
only 20 minutes in a well greased cake pan, measuring 13" x 9" x 2" or
larger. Make topping by cooking sugar, butter, eggs and flour together for
3 minutes. Add pecans and vanilla. Spread topping over cakes and bake 8 to
10 minutes @ 350 degrees. Note: Do not make topping until cake is cooked
because sugar will crystallize or harden while waiting.