Peanut Butter Swirl Bars

Prep: 15 min Cook: 35 min Serves: 12 Cuisine: American

Decadent peanut butter swirl bars combine creamy peanut butter and rich chocolate chips for a delightful treat. With a perfect balance of sweetness and nutty flavor, these bars are ideal for dessert or a satisfying snack, appealing to both peanut butter lovers and chocolate enthusiasts alike.

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Ingredients

  • 1/2 cup chunky peanut butter
  • 1/3 cup butter, softened
  • 3/4 cup packed brown sugar
  • 3/4 cup granulated sugar
  • 2 large eggs
  • 2 teaspoons vanilla extract
  • 1 cup self rising flour
  • 2 cups semi-sweet chocolate chips

Instructions

  1. Preheat the oven to 350°F (175°C).
  2. Beat the chunky peanut butter, softened butter, brown sugar, and granulated sugar at medium speed of an electric beater until creamy.
  3. Add the eggs and vanilla extract, then beat well.
  4. Add the self-rising flour to the mixture and beat until well combined.
  5. Spread the batter in an ungreased 9 x 13 inch (23 x 33 cm) pan.
  6. Sprinkle the semi-sweet chocolate chips evenly over the batter.
  7. Bake at 350°F (175°C) for 5 minutes.
  8. Remove from the oven and run a knife through the batter to swirl the chocolate chips.
  9. Return to the oven and bake for an additional 30 minutes.
  10. Cool completely in the pan on a wire rack.
  11. Cut into bars and serve.

Tips & Substitutions

For a creamier texture, try using creamy peanut butter instead of chunky. You can also substitute the butter with coconut oil for a dairy-free version. If you don't have self-rising flour, mix all-purpose flour with 1 1/2 teaspoons baking powder and 1/2 teaspoon salt. For a twist, add crushed nuts or dried fruit to the batter.

Serving Suggestions

These bars are delightful on their own, but pair beautifully with a scoop of vanilla ice cream for an indulgent dessert. They can also be served alongside a fruit salad or a cup of coffee for a satisfying treat. Try them with a drizzle of chocolate sauce or a sprinkle of sea salt for added flavor.

Storage & Reheating

Store leftover Peanut Butter Swirl Bars in an airtight container at room temperature for up to 3 days. For longer storage, refrigerate them where they can last for up to a week. To reheat, place a bar in the microwave for about 10-15 seconds until warm, enhancing the gooey texture.

Nutrition & Diet Analysis (per serving)

Each serving of Peanut Butter Swirl Bars contains roughly 606 calories, with 5g protein, 35g carbohydrates, and 49g fat. It is an excellent source of vitamin A (21% of the Daily Value), and a good source of iron and protein.

606 kcal 30% DV
Protein Fat Carbs

Macronutrients

Protein 5.4g 11% DV
Total Fat 48.8g 63% DV
Carbs 35g 13% DV
Fiber 1.3g 5% DV
Sugar 17g 34% DV

Electrolytes

Sodium 107.5mg 5% DV
Potassium 257mg 5% DV
Cholesterol 163mg 54% DV

Vitamins & Minerals

Vitamin A 186.3mcg 21% DV
Vitamin C 3.7mg 4% DV
Calcium 60.5mg 5% DV
Iron 3.2mg 18% DV
Contains Milk Egg Wheat/Gluten Peanut

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 use natural peanut butter instead of chunky?

Yes, natural peanut butter can be used, but it may alter the texture slightly. Natural peanut butter tends to be less creamy and can change the moisture content, so you might want to adjust the amount of butter or add a bit more sugar to balance it out.

How do I know when the bars are done baking?

The bars are done when they are set in the center and slightly golden around the edges. A toothpick inserted in the middle should come out mostly clean, with a few moist crumbs. Remember that they will continue to set as they cool.

Can I freeze these bars for later?

Absolutely! To freeze, wrap the bars individually in plastic wrap and then place them in a freezer-safe bag or container. They can be stored in the freezer for up to 3 months. Thaw them in the refrigerator before serving or microwave them for a quick snack.

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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