Brownies are one of those chocolate treats that pretty much anyone loves. You can frost them, add things like nuts or one of the many varieties of baking chips - mint, milk chocolate, etc. - or even top with marshmallow cream A plain brownie mix found in the baking section of any grocery store is your launching board. Want to be non-eco friendly and really save mess, you can buy 8" square aluminum baking pans so that you can just cut and carry with you. One box makes enough to fill one 8" square pan, so if you're serving a lot of people, I would mix up 2 boxes at once and just split the batter between 2 pans.
Here is my version using Snicker Bars to give them that extra bit of flavour.
1 - Package plain Brownie mix
Whatever the package says you need - usually an egg, oil and water
My mix also suggested parchment paper to line the pan
1-2 - Snicker Bars, the more the richer! (could try other candy bars as well or M&M's)
Pre-heat oven according to the directions on the box and line the bottom of your 8" Square pan with a piece of parchment paper. Put the brownie mix in a large bowl. Cut the Snicker Bar lengthwise into 3 long sections and then cross-wise into very small pieces. Note - if you put them in the refrigerator to chill for a few minutes they are easier to cut. Toss the diced candy bar into the dry ingredients until well mixed. Mix together the wet ingredients (egg, water, oil) and gently stir into the dry ingredients. Place the batter in your prepared pan and bake according to package directions. Cool in pan, then cut in small pieces and serve.
Remember - this is just a lunching board for where ever your imagination can take you. Here are links to a few more variations:
S'more Brownies - http://www.duncanhines.ca/products/brownies/chewy-fudge-brownie-mix
Brownie Gems - http://www.duncanhines.ca/products/brownies/ingredient-rich-chocolate-candy-brownie-mix
Rocky Road - http://www.duncanhines.ca/products/brownies/chocolate-decadence-brownie-mix
7 Variations - http://cooking.allwomenstalk.com/7-variations-on-the-traditional-brownie-recipe/
Have more time and want to try something from scratch? I found this recipe for homemade brownies that taste like Snicker Bars. I haven't tried it yet so if you do, let me know what you think - http://youngaudiencesindiana.blogspot.ca/2011/07/since-were-talking-about-snickers.html