Chocolate M&M Cookies

3/4 cup (1.5 sticks) butter, softened
3/4 cup granulated sugar
3/4 cup firmly packed light brown sugar
1 large egg
1 tsp vanilla extract
2.25 cups all-purpose flour
1/3 cup unsweetened cocoa powder
1 tsp baking soda
1/2 tsp salt
1 cup M&Ms chocolate candies (plus more for decorating the tops)

1. Preheat oven to 350. Line cookie sheets with parchment paper or lightly grease them; set aside.

2. In large bowl, beat butter and sugars with an electric mixer until well blended.

3. Beat in egg and vanilla. Scrape down sides of the bowl with a rubber spatula to make sure everything gets blended.

4. In medium bowl, stir flour, cocoa powder, baking soda and salt until combined.

5. Add flour mixture to butter-sugar mixture. Stir in M&Ms.

6. Place heaping tablespoonfuls of cookie dough about 2 inches apart on prepared cookie sheets. Press a few more M&Ms into the top of the mounds of cookie dough.

7. Bake 12-14 minutes for chewy cookies or 14-16 minutes for crispy cookies.

8. Remove from the oven and transfer cookies to wire racks to cool completely. Store in tightly covered container.

Makes approximately 3 dozen cookies.