Oatmeal Marble Squares

Prep: 15 min Cook: 3 min Serves: 12 Cuisine: American

Oatmeal Marble Squares combine the hearty texture of oats with rich chocolate and nuts, creating a delightful treat perfect for snacking or dessert. Their marbled appearance and balanced flavors make them a crowd-pleaser for family gatherings or casual get-togethers.

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Ingredients

  • 3/4 cup all-purpose flour
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1/2 cup butter, softened
  • 6 tablespoons sugar
  • 6 tablespoons brown sugar
  • 1/2 teaspoon vanilla extract
  • 1/2 cup quick oats
  • 1 egg
  • 1 cup chopped nuts
  • 1 cup semi-sweet chocolate morsels

Instructions

  1. Preheat oven to 375°F (190°C).
  2. In a small bowl, combine all-purpose flour, baking soda, and salt; set aside.
  3. In a large bowl, beat softened butter, sugar, brown sugar, and vanilla extract until creamy.
  4. Beat in the egg until well combined.
  5. Gradually blend in the flour mixture.
  6. Stir in quick oats and chopped nuts.
  7. Spread the batter evenly into a 13 x 9 x 2-inch baking pan.
  8. Place in the preheated oven for 3 minutes.
  9. Run a knife through the batter to marbleize.

Tips & Substitutions

For a nut-free version, you can substitute the chopped nuts with additional oats or seeds like sunflower seeds. If you're short on time, you can use pre-made cookie dough as a base. Ensure your butter is softened to room temperature for the best mixing results. If you prefer a sweeter taste, feel free to add a bit more sugar or chocolate morsels.

Serving Suggestions

These Oatmeal Marble Squares are perfect as a snack or dessert. Serve them warm with a scoop of vanilla ice cream for an indulgent treat. They pair beautifully with coffee or a glass of milk. For a festive touch, consider drizzling melted chocolate on top or sprinkling powdered sugar before serving.

Storage & Reheating

Store leftover Oatmeal Marble Squares in an airtight container at room temperature for up to 4 days. For longer storage, keep them in the refrigerator for up to a week. To reheat, simply microwave for 10-15 seconds until warm, or enjoy them cold for a chewy texture.

Nutrition & Diet Analysis (per serving)

Each serving of Oatmeal Marble Squares contains roughly 361 calories, with 4g protein, 32g carbohydrates, and 25g fat. Note that it is relatively high in sodium, at 1036mg per serving (45% of the Daily Value).

361 kcal 18% DV
Protein Fat Carbs

Macronutrients

Protein 3.5g 7% DV
Total Fat 24.7g 32% DV
Carbs 32.1g 12% DV
Fiber 1.1g 4% DV
Sugar 7.3g 15% DV

Electrolytes

Sodium 1036.3mg 45% DV
Potassium 206.2mg 4% DV
Cholesterol 98.7mg 33% DV

Vitamins & Minerals

Vitamin A 9.8mcg 1% DV
Vitamin C 0.1mg
Calcium 50.6mg 4% DV
Iron 1mg 5% DV
Diet fit Under 400 cal
Contains Milk Egg Wheat/Gluten

Estimated from ingredients & per-serving nutrition — verify against package labels for allergies or strict diets.

* % Daily Values based on a 2,000 calorie diet (FDA 2020).

Frequently Asked Questions

Can I add different types of chocolate or mix-ins?

Absolutely! Feel free to experiment with white chocolate morsels, dark chocolate, or even dried fruits like cranberries or raisins. Mixing in a combination of chocolate types can also elevate the flavor profile, making it even more delicious.

Nutrition is estimated from USDA FoodData Central ingredient data and may vary with brand, portion and preparation — see our methodology. This information is for general educational purposes only and is not medical or dietary advice (disclaimer).

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