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Peanut Butter Marbled Brownies

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  • Prep 10 min
  • Total 2 hr 35 min
  • Servings 20
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With help from a common pantry staple you can turn regular brownies into an irresistible treat. By mixing a swirl of rich creamy or crunchy peanut butter into brownie batter you can create an extra special dessert that’s fuss-free and no-fail.
By Betty Crocker Kitchens
Updated Jul 18, 2023
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Ingredients

Steps

  • 1
    Heat oven to 350°F. Grease bottom of 13x9-inch pan with shortening or cooking spray. Make brownie batter as directed on box. Spread in pan.
  • 2
    In small microwavable bowl, microwave peanut butter uncovered on High 25 seconds; stir until smooth. Drop 20 spoonfuls of peanut butter in 5x4 rows over brownie batter. For marbled design, pull knife through batter and filling about 1 inch apart; turn pan and repeat.
  • 3
    Bake 19 to 22 minutes or until toothpick inserted 2 inches from side of pan comes out clean. Cool completely on cooling rack, about 2 hours. Store covered at room temperature.

Tips from the Betty Crocker Kitchens

  • tip 1
    It's important to microwave the peanut butter until just starting to become a looser texture, then stir until smooth. Peanut butter will swirl better if it is a similar texture to the brownie batter.
  • tip 2
    For neat brownie squares, use a clean, sharp knife to cut your Peanut Butter Marbled Brownies; clean the knife after each cut.
  • tip 3
    To make cutting the brownies a breeze, line the baking pan with heavy-duty foil, leaving an overhang. Once the brownies are cooled you can lift them out of the pan onto a large cutting board. Remove the foil and cut into pieces.
  • tip 4
    Craving more chocolate and peanut butter treats? Check out Betty's Top 10 Chocolate-Peanut Butter Pairings.

Nutrition

210 Calories, 11g Total Fat, 3g Protein, 23g Total Carbohydrate, 15g Sugars

Nutrition Facts

Serving Size: 1 Brownie
Calories
210
Calories from Fat
100
Total Fat
11g
17%
Saturated Fat
2 1/2g
12%
Trans Fat
0g
Cholesterol
20mg
6%
Sodium
120mg
5%
Potassium
55mg
2%
Total Carbohydrate
23g
8%
Dietary Fiber
0g
0%
Sugars
15g
Protein
3g
% Daily Value*:
Vitamin A
0%
0%
Vitamin C
0%
0%
Calcium
0%
0%
Iron
6%
6%
Exchanges:
1 Starch; 0 Fruit; 1/2 Other Carbohydrate; 0 Skim Milk; 0 Low-Fat Milk; 0 Milk; 0 Vegetable; 0 Very Lean Meat; 0 Lean Meat; 0 High-Fat Meat; 2 Fat;
Carbohydrate Choice
1 1/2
*Percent Daily Values are based on a 2,000 calorie diet.

More About This Recipe

  • 1, 2, 3, 4, 5! That’s how many ingredients you need to make these fudgy and delectable brownies, which feature one of our favorite flavor combos: peanut butter and chocolate. Peanut butter gives these brownies a flavor boost. But they never lose the rich chocolatey flavor that makes brownies the best bar around. The next time you’ve got a spare 10 minutes, mix up a batch of these brownies — it’s the easiest way we know to make everyone’s night. If you really want to impress, read all of Betty’s tips and tricks for making brownies and bars .
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