Brownie cookie bars

When I first got this recipe it was HUGE..so I cut everything in half and it worked out wonderfully! We haven't decided yet if they are a brownie or a cookie??? BUT we do know they are delicious! So, here's the recipe cut in half...

Brownie Cookie Bars
Cream:
2 cubes butter (softened)
1 cup brown sugar
3/4 cup sugar

Add:
2 eggs
1 1/2 tsp vanilla
3/4 tsp. salt
3/4 tsp. soda

Mix in mixer until creamy
Add:
1 1/2 cups flour (don't pack it in)
3 Tbs. Cocoa
1 1/2 cups (more) flour
2 cups chocolate chips
2 cups mini m&m's (we tried white chocolate chips and peanut butter chips...YUMM! I would say you could put whatever chips in this you like)
Bake in 9x13 pan @ 350 for 20-24 min.