Heat the oven to 350°F. Spray an 8X8 pan with nonstick baking spray. Place parchment paper on the bottom and sides and spray again. Set aside.
1
Mix the butter, brown sugar, and sugar on high for 2 minutes until frothy. Add peanut butter and vanilla and beat for 1 minute on medium-high.
2
Put the eggs in and mix on medium speed until the mixture is fluffy. Mix on low speed until the flour, baking soda, and salt are just mixed in.
3
Add the chocolate chips and chopped Nutter Butters and mix them in. Spread out the cookie dough in the pan until it's all the same size.
4
Bake 20-28 minutes. Bake till golden. Sprinkle more Nutter Butters and chocolate chips on top immediately. Cool fully on a rack. Cut the bars into squares after removing them from the pan.
5