Ingredients
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1 cup butter (227g), room temperature
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1 cup light brown sugar (220g), packed
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1/2 cup granulated sugar (100g)
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2 large eggs
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2 teaspoons vanilla extract
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1/2 teaspoon salt
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1 teaspoon baking soda
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1 teaspoon baking powder
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1 1/2 cups all-purpose flour (188g)
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2 cups old-fashioned rolled oats (170g)
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2 cups chocolate chips (340g), semi-sweet, milk, or a mix
Instructions
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Preheat oven to 350°F (180°C). Lightly grease or line a 9×13-inch pan with parchment.
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Beat butter, brown sugar, and granulated sugar until smooth and light.
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Add eggs one at a time, mixing after each, then beat in vanilla.
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In a separate bowl whisk salt, baking soda, baking powder, flour, and rolled oats.
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Add dry mixture to the creamed mixture; stir just until combined.
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Fold in chocolate chips.
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Press dough evenly into the prepared pan.
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Bake 25–30 minutes, until golden brown and set at the edges.
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Cool completely in the pan, then cut into bars.
Notes
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Use old-fashioned rolled oats for the best chewy texture.
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Spoon and level flour to avoid dry bars.
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Mix chocolate types for balanced flavor; add nuts if you like.
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For cleaner slices, chill the baked slab for 20 minutes before cutting.
- Prep Time: 15 minutes
- Cook Time: 25–30 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
- Diet: Vegetarian
Nutrition
- Serving Size: 1 bar
- Calories: 210
- Sugar: 18g
- Sodium: 120mg
- Fat: 11g
- Saturated Fat: 6g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 28g
- Fiber: 2g
- Protein: 3g
- Cholesterol: 30mg