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Rainbow Surprise Inside Cake

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Updated Jul 25, 2023
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We've got a show-stopping dessert for you: it's a fun cake filled with a colorful, sweet surprise that tumbles out when you cut into it! This Rainbow Surprise Inside Cake will be a hit at birthday parties, holiday gatherings and other celebrations. You can even play with the colors of the candy filling to customize it for the occasion.

Rainbow Surprise Inside Cake

  • Prep Time 30 min
  • Total 3 hr 25 min
  • Servings 16
  • Ingredients 6
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Ingredients

Instructions

  • Step 
    1
    Heat oven to 350°F (325°F for dark or nonstick pans). Spray bottom and sides of 2 (8-inch) round cake pans; line with cooking parchment paper. In large bowl, beat 1 box cake mix and ingredients called for on box with electric mixer on medium speed for 2 minutes, scraping bowl occasionally. Divide batter between pans. Bake as directed on box for 8-inch round cake pans. Cool 10 minutes. Remove from pans to cooling rack; remove parchment paper. Cool completely, about 1 hour. Meanwhile, repeat mixing and baking with second box of cake mix to make 2 more layers.
  • Step 
    2
    Flatten cake layers by trimming off rounded tops. In 2 layers, cut small round out of center, using 4-inch round cutter.
  • Step 
    3
    To assemble cake: Place 1 uncut cake layer on cake stand or serving platter; spread 1/3 cup frosting on top. Top with 1 layer with center removed; spread 1/3 cup frosting on top. Top with second layer with center removed; spread 1/3 cup frosting on top.
  • Step 
    4
    In small bowl, mix chocolate candies and sprinkles. Fill cake with candies and candy sprinkles. Gently press candies to level; top with full cake layer. Frost side and top of cake with remaining frosting. Store loosely covered at room temperature.

Nutrition

630 Calories
32g Total Fat
5g Protein
80g Total Carbohydrate
63g Sugars

Nutrition Facts

Serving Size: 1 Serving
Calories
630
Calories from Fat
290
Total Fat
32g
50%
Saturated Fat
14g
72%
Trans Fat
0g
Cholesterol
75mg
25%
Sodium
280mg
12%
Potassium
125mg
4%
Total Carbohydrate
80g
27%
Dietary Fiber
1g
4%
Sugars
63g
Protein
5g
% Daily Value*:
Vitamin A
4%
4%
Vitamin C
0%
0%
Calcium
10%
10%
Iron
6%
6%
Exchanges:
1 Starch; 0 Fruit; 4 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; 6 1/2 Fat;
Carbohydrate Choice
5
*Percent Daily Values are based on a 2,000 calorie diet.

Tips from the Betty Crocker Kitchens

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