We always used brownie mix...
For years I kept three or four boxes of brownie mix in the house all the time, so the kids could make brownies whenever they wanted to. It was 99 cents a box, it was the simplest possible recipe, and it made something they loved. What could be better? But now the kids are a little older, and they can cook a little better, so they've been promoted to making brownies from scratch. It's actually a little more expensive than the brownie mix, but everyone thinks it tastes better. And it's still not very hard to make.
How to make chocolate brownies:
Preheat oven to 350. In a medium-size mixing bowl, put a stick of butter and four squares of semi-sweet baking chocolate. Melt in the microwave (about two minutes) and stir. Add 1 cup of sugar, 1 tsp. vanilla, 1 tsp. baking powder, 1/2 tsp. salt, and stir. Add 2 eggs, and stir again. Add 1 cup of flour, and stir again. Pour into a greased 9x9 baking pan and bake about 20 minutes.
This is a pretty small recipe, so you might want to double it if it's for a party or to share.
Vegetarian or vegan
Just naturally vegetarian! Enjoy! To make it vegan, leave out the eggs and butter, and add 1/2 cup of safflower oil and an extra teaspoon of baking powder instead.
Can I keep this for later?
Sure. Brownies will keep for at least three or four days if you wrap them in a dishcloth or put them in a tupperware. If you can keep the kids away from them.