Preheat oven to 350°F. Line an 8x8 pan with parchment paper.
Mix the rolled oats, peanut butter, and brown sugar in a mixer on high until combined.
Add the milk and vanilla and mix until combined.
Combine the flour, baking soda, and salt in a small bowl and add to the mixture.
Fold in the chocolate chips.
Press mixture into the lined pan and bake for 18-20 minutes.
Source:
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