I found this recipe at Evil Shenanigans and followed it precisely but my cookies ended up dome shaped and not flat and cookie like. This however, didn't affect the taste which is beyond perfection.
I'm trying to figure out what to do to make them flatter and more cookie like next time because they taste great. So, I asked her via a comment she might never see and I also asked in the baking forum at ChefTalk.
Oatmeal Peanut Butter Chocolate Chip Cookies Yield 5 dozen
1/2 cup butter, at room temperature
1/2 cup white sugar
3/4 cup brown sugar
1/2 cup creamy peanut butter
1 teaspoon vanilla
3/4 cup all-purpose flour
1/8 teaspoon salt
1/2 teaspoon baking soda
1/2 teaspoon baking powder
1/2 teaspoon cinnamon
2 cups quick cooking oats
1 cup semi-sweet chocolate chips
Heat the oven to 375F and line two baking sheets with parchment paper.
In the bowl of a stand mixer, using the paddle attachment, cream the butter and both the sugars on medium-low speed until well mixed but not light and fluffy. Add the peanut butter and mix until well blended. Add the egg and vanilla and mix until well combined.
In a medium bowl combine the flour, salt, baking soda, baking powder, and cinnamon. Whisk until well combined.
Add the dry ingredients to the bowl of the mixer and, on low speed, mix until most of the dry ingredients are combined. Add the oats and chips and mix them in on low speed, or by hand.
Scoop the cookies on to the prepared pan by rounded tablespoons. Bake for 9-12 minutes, or until the cookies are lightly browned and puffed.
Cool on the pan for 3 minutes before transferring to a wire rack to cool.