Melt together chocolate chips and butter (microwave for about 1 1/2 - 2 minutes). Beat eggs and add in everything else. Put in greased 8×12 (or 9×13 works, too) pan and bake at 350 for 25-30 minutes until everything but the center comes out clean with a toothpick (this way the last little bit will cook after you take it out of the oven and it will be soft and moist without being overdone).