1 box Butter Pecan cake mix (reserve 3/4 C. for filling)
1 stick butter, softened
Beat egg, add butter and cake mix. Press into greased and floured 9x12-inch pan. Bake at 350 degrees for 20 minutes.
FILLING: 1/2 C. brown sugar 1/2 C. corn syrup
reserved cake mix 3 beaten eggs
2 C. chopped pecans 1 tsp. vanilla
Mix ingredients together. Pour over top of cake. Bake at 350 degrees for 30 minutes. Cool and cut into 2-inch square