Description
These chewy and delicious Oatmeal Cookie Bars combine the classic flavors of oatmeal cookies and chocolate chips into a convenient bar form. Perfectly balanced with a hint of cinnamon and a rich buttery base, these bars are ideal for snacks, dessert or on-the-go treats.
Ingredients
Wet Ingredients
- 1 cup butter (melted)
- 1 cup light brown sugar (tightly packed)
- ½ cup sugar
- 2 large eggs + 1 large egg yolk
- 1 ½ teaspoons vanilla extract
Dry Ingredients
- 1 ¼ cup all-purpose flour
- 2 teaspoons cornstarch (cornflour in UK)
- ½ teaspoon baking powder
- ¾ teaspoon salt
- ¼-½ teaspoon ground cinnamon (optional)
- 3 cups old fashioned rolled oats
Add-ins
- 1 ½ cups chocolate chips (optional, mix of semisweet, milk, and butterscotch chips)
Instructions
- Preheat oven and prepare pan: Preheat your oven to 350°F (175°C). Line a 9×9 inch metal baking pan with parchment paper, or alternatively, grease and flour the pan to prevent sticking.
- Combine butter and sugars: In a large mixing bowl, combine the melted butter with the light brown sugar and granulated sugar. Stir thoroughly until the mixture is smooth and well-combined.
- Add eggs and vanilla: Add the 2 large eggs and 1 egg yolk along with the vanilla extract to the butter and sugar mixture. Stir well to integrate all wet ingredients uniformly.
- Mix dry ingredients: In a separate bowl, whisk together the all-purpose flour, cornstarch, baking powder, salt, and ground cinnamon if using. Ensure the dry ingredients are evenly combined.
- Combine wet and dry: Gradually add the dry ingredients into the wet mixture. Stir continuously until you achieve a completely combined dough.
- Add oats and chocolate chips: Fold in the rolled oats and chocolate chips, mixing until they are distributed evenly throughout the dough.
- Bake the bars: Spread the cookie dough evenly into the prepared baking pan. Bake in the preheated oven for 35-40 minutes, or until a toothpick inserted into the center comes out clean or with a few moist crumbs.
Notes
- For best results, use old fashioned rolled oats to maintain a chewy texture.
- The chocolate chips are optional and can be substituted with nuts or dried fruit as preferred.
- Make sure not to overbake to keep the bars moist and chewy.
- Allow bars to cool completely in the pan before cutting to ensure clean slices.
- Storage: Keep airtight at room temperature for up to 5 days or freeze for longer storage.
- Prep Time: 15 minutes
- Cook Time: 40 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
