Oatmeal Dad's Cookie Squares

Meet your new favorite dessert: Oatmeal Dad’s Cookie Squares—a nostalgic twist on classic oatmeal cookies, baked into satisfyingly chewy bars bursting with rich chocolate chips and the hearty goodness of old-fashioned rolled oats. These cookie squares combine buttery caramel notes from light brown sugar with a warm hint of cinnamon, creating an irresistible blend of flavors. Easy to make in just one pan, they require minimal effort with maximum payoff—perfect for bake sales, after-school treats, or a cozy family dessert. Optional chopped nuts, like pecans or walnuts, add a delightful crunch if desired, while their soft-baked texture is guaranteed to please any crowd. Whip up these indulgent cookie squares in under an hour, and enjoy a treat that’s as nostalgic as it is delicious.

Nutriscore Rating: 43/100

Prep Time:15 mins

Cook Time:25 mins

Total Time:40 mins

Servings: 16

Ingredients

• 1 cup unsalted butter
• 1.5 cups light brown sugar
• 0.5 cups granulated sugar
• 2 large eggs
• 2 teaspoons vanilla extract
• 1.75 cups all-purpose flour
• 1 teaspoon baking soda
• 1 teaspoon ground cinnamon
• 0.5 teaspoon salt
• 3 cups old-fashioned rolled oats
• 1.5 cups chocolate chips
• 0.5 cups chopped nuts (optional, such as walnuts or pecans)

Directions

Step 1

Preheat your oven to 350°F (175°C) and grease or line a 9x13-inch baking pan with parchment paper for easy removal of the cookie squares.

Step 2

In a large mixing bowl, beat the softened butter, brown sugar, and granulated sugar together until creamy and smooth, about 2-3 minutes.

Step 3

Add the eggs one at a time, beating well after each addition. Stir in the vanilla extract.

Step 4

In a separate bowl, whisk together the flour, baking soda, cinnamon, and salt until evenly combined.

Step 5

Gradually add the dry ingredients to the wet ingredients, mixing just until combined. Do not overmix.

Step 6

Fold in the rolled oats, chocolate chips, and nuts (if using) until evenly distributed throughout the batter.

Step 7

Spread the batter evenly into the prepared baking pan, using a spatula or the back of a spoon to smooth it out.

Step 8

Bake in the preheated oven for 22-25 minutes, or until the edges are golden brown and a toothpick inserted in the center comes out with just a few moist crumbs.

Step 9

Remove the pan from the oven and allow the cookie squares to cool completely in the pan on a wire rack.

Step 10

Once cooled, cut into 16 squares or desired portion sizes and serve. Store leftovers in an airtight container at room temperature for up to 5 days.

Nutrition Facts

Serving size	(1474.1g)

Amount per serving	% Daily Value*
Calories	6146.8

Total Fat 263.4g	0%
Saturated Fat 125.4g	0%
Polyunsaturated Fat 3.3g
Cholesterol 620mg	0%
Sodium 2711.5mg	0%
Total Carbohydrate 951.1g	0%
Dietary Fiber 55.0g	0%
Total Sugars 593.5g
Protein 86.8g	0%

Vitamin D 80IU	0%
Calcium 591.3mg	0%
Iron 33.7mg	0%
Potassium 3173.2mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 36.3%

Protein: 5.3%

Carbs: 58.3%