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Reese’s Peanut Butter Earthquake Cake

Print recipeClose-up of Reese’s Peanut Butter Earthquake Cake showing melted chocolate and peanut butter swirls

A rich, gooey dessert layered with chocolate cake, creamy peanut butter, and velvety cream cheese, baked together into irresistible molten swirls of sweetness.

 
 

Prep time
20 minutes
Cook time
50 minutes
Total time
1 hour 40 minutes
Yield
12–16 servings

Ingredients

1 box devil’s food cake mix (15.25 oz / 430 g)

1 cup whole milk (or water)

½ cup vegetable oil

3 large eggs

1 package (8 oz / 225 g) cream cheese, softened

½ cup unsalted butter, melted

½ cup creamy peanut butter

3 ½ cups powdered sugar, sifted

1 cup Reese’s Peanut Butter Cups, chopped

¾ cup Reese’s Pieces

½ cup peanut butter chips

½ cup semi-sweet or milk chocolate chips

Pinch of sea salt flakes (optional)

Instructions

  1. Step 1: Preheat oven to 350°F (175°C) and grease a 9×13-inch pan with butter or nonstick spray.
  2. Step 2: Combine cake mix, milk, oil, and eggs in a large bowl. Mix until smooth and glossy.
  3. Step 3: In another bowl, beat cream cheese, melted butter, and peanut butter. Gradually add powdered sugar until creamy and thick.
  4. Step 4: Pour cake batter into prepared pan. Sprinkle half of the candies and chips over it.
  5. Step 5: Drop spoonfuls of the cream cheese mixture on top do not spread. Sprinkle remaining candies over the surface.
  6. Step 6: Bake for 45–50 minutes, until edges are set and the center remains slightly gooey.
  7. Step 7: Cool for 30 minutes before slicing. Serve warm for molten texture or chilled for a fudgy version.

Notes

• Store covered at room temperature for 2 days or refrigerate up to 5 days.

• Freeze slices for up to 2 months; thaw overnight before serving.

• Best served warm with vanilla ice cream or whipped cream.

• For an extra twist, drizzle caramel or chocolate sauce before baking.

Nutrition

Calories
520 kcal
Fat
28 g
Saturated fat
14 g
Sugar
45 g
Sodium
380 mg
Protein
8 g
Carbohydrates
60 g
Fiber
2 g