I don't like re-posting other people's content, but I can't remember where I got the recipe from, more than 2 years ago now. An email from the Tribune maybe?
For the party, I just swapped out chocolate chips and replaced it with pink and white M&Ms. I usually also halve the recipe.
After-school Chip Cookies
Prep: 15 minutes
Cook: 8 minutes per batch
Makes 4 dozen
2 cups flour
1 tsp salt
3/4 teaspoon baking soda
2 sticks (1 cup) unsalted butter, softened
1 cup sugar
2/3 cup light brown sugar
2 teaspoons vanilla extract
1 bag (12 oz) chocolate chips
Mix: Whisk together flour, salt and soda in a medium bowl.
Cream: Beat butter soft with an electric mixer on medium, 1 minute. Add sugars and vanilla; beat fluffy, 1 minute. Add eggs, beating 1 minute after each. Switch to low speed; briefly mix in dry ingredients. Stir in chocolate chips with a spoon.
Bake: Heap 1 tablespoon mounds of dough onto a parchment lined baking sheet. Slide into the center of a 350 degree oven; bake until cookies turn golden at edges and soft in the center, 8-10 minutes. Cool on a rack. Repeat with remaining dough.
Sometimes less is more!