Chocolate Chip Cookies

I've been trying to perfect my chocolate chip cookie recipe and each time I think I'm getting closer and then I bake them and have to go back to the drawing board. This recipe is pretty good, but still not the "perfect" cookie I'm looking to create.

Chocolate Chip Cookies
1 C butter, softened
1 C creamy peanut butter
1 C brown sugar
1/4 C granulated sugar
2 eggs
1 tsp. vanilla
3 C AP flour
1 tsp. baking soda
1 tsp. baking powder
1 tsp. salt
2 TBS malted milk powder
1 C old fashioned oats
1 1/2 C chocolate chips (semi-sweet or milk-or combined)
Preheat oven to 350°F. In a large bowl and with a mixer on medium high cream the butter and peanut butter together with the sugars. Add the eggs one at a time beating well after each addition. Pour in the vanilla and beat until combined. In a medium bowl combine together the flour, baking soda, baking powder, salt and malted milk powder. Stir in the oats. Slowly add the flour mixture to the butter mixture and with the mixer on low combine completely. Stir in the chocolate chips with a heavy spoon or spatula until mixed in. Spoon mixture by tablespoons full (I use the small size scoop) onto a parchment paper lined baking sheet. Bake for 12-13 minutes. Let cool for two minutes on the baking sheet then remove to a cooling rack for 10 minutes. Store in an air tight container.
These cookies do not spread very much, they come out approximately 2" in diameter.