Here is another from my Martha Stewart Cookies cookbook, and they are very good. I used my smallest cookie scoop to make the cookies very small. I think next time I will use my medium scoop.
2 cups all-purpose flour
1 teaspoon baking soda
1 teaspoon salt
1/2 teaspoon ground cinnamon
3/4 cup (1 1/2 sticks) unsalted butter, softened
1/2 cup smooth peanut butter
1 cup packed light-brown sugar
1/2 cup granulated sugar
2 large eggs
1 1/2 cups semisweet chocolate chips
2/3 cup roasted, salted peanuts, coarsely chopped
2 teaspoons pure vanilla extract
Preheat oven to 350 degrees. Whisk together flour, baking soda, salt, and cinnamon in a medium bowl. Put butter and peanut butter in the bowl of an electric mixer fitted with the paddle attachment; mix on medium speed until combined, about 2 minutes. Add sugars; mix 2 minutes. Mix in eggs. Gradually add flour mixture; mix until just combined. Fold in chocolate chips, peanuts, and vanilla with a mixing spoon until well distributed. Refrigerate dough until it is slightly firm, 15 minutes.
Roll dough into 1-inch balls. Space balls 2 to 3 inches apart on baking sheets lined with parchment paper. Flatten slightly. Bake until just golden, about 13 minutes. Transfer cookies to wire racks to cool.