Prep Time: 15 minutes | Baking Time: 25–30 minutes | Total Time: 45 minutes
Servings: 20 bars | Approx. 310 kcal per bar
Directions
- Prepare the Pan and Oven: Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking pan or line it with parchment paper, leaving some overhang on the sides for easy removal after baking.
- Cream Butter and Sugars: In a large mixing bowl, cream together the softened butter, brown sugar, and granulated sugar until light and fluffy. This step helps create a soft, chewy texture and evenly distributes sweetness throughout the bars.
- Add Peanut Butter and Wet Ingredients: Mix in the creamy peanut butter until fully incorporated, then add the eggs and vanilla extract. Beat until the mixture is smooth, glossy, and well combined.
- Add Dry Ingredients: Sprinkle in the baking soda and salt, mixing briefly to distribute them evenly. Stir in the old-fashioned oats and all-purpose flour until just combined. The dough will be thick and sturdy, which is perfect for bar cookies.