1 box yellow cake mix
1/2 c. brown sugar
1 stick butter, melted
1/2-1 c. candy bar pieces
(I used toffee and mini chocolate chips - I think Reeses would be an awesome addition)
Mix together first four ingredients with mixer for 2 minutes, scraping batter down sides as needed. Fold in candy pieces and mix well. Place batter in ungreased 9x13 pan and bake at 350 for 40-45 minutes (Mine were done in 35)
*The batter was very sticky so I used the hint Ingrid of 3 B's has mentioned before - I dampened my hands first and patted the batter down very smoothly. Worked like a charm - thanks Ingrid!