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White Chocolate Sheet Cake with White Chocolate Frosting

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  • Prep 30 min
  • Total 2 hr 0 min
  • Servings 24
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Serving a crowd? Try a white chocolate cake slathered with a dreamy white chocolate frosting.
By Betty Crocker Kitchens
Updated Apr 2, 2013

Ingredients

Cake

White Chocolate Frosting

  • 3 oz white chocolate baking bars or squares, chopped
  • 3 tablespoons whipping cream
  • 1/2 cup butter or margarine, softened
  • 3 cups powdered sugar

Garnish

  • 1/2 cup chopped pecans, toasted if desired

Steps

  • 1
    Heat oven to 350°F (325°F for dark or nonstick pan.) Spray bottom and sides of 15x10x1-inch pan with baking spray with flour.
  • 2
    In small microwavable bowl, microwave 3 oz white chocolate and 2 tablespoons cream uncovered on High 1 minute, stirring every 30 seconds, until smooth. Cool 10 to 15 minutes.
  • 3
    In large bowl, beat cake mix, sour cream, oil, eggs and chocolate mixture with electric mixer on low speed 30 seconds, then on medium speed 2 minutes, scraping bowl occasionally. Pour into pan.
  • 4
    Bake 21 to 25 minutes or until toothpick inserted in center comes out clean. Cool completely, about 1 hour.
  • 5
    In small microwavable bowl, microwave 3 oz white chocolate and 3 tablespoons cream uncovered on High 1 minute, stirring every 30 seconds, until smooth. Cool 10 to 15 minutes.
  • 6
    In medium bowl, beat butter and 2 cups of the powdered sugar with electric mixer on medium speed until blended. Add white chocolate mixture; blend well. Add remaining powdered sugar; beat until smooth. Spread frosting over cake; sprinkle with pecans. Store loosely covered.

Tips from the Betty Crocker Kitchens

  • tip 1
    Toasting pecans or other nuts intensifies their flavor. To toast pecans, heat oven to 350°F. Spread pecans in ungreased shallow pan. Bake uncovered 6 to 10 minutes, stirring occasionally until light brown.
  • tip 2
    White chocolate is made from cocoa butter and adds a wonderful rich flavor to this cake. Find white chocolate in the baking section of the grocery store and use half of the 6 oz package (3 squares, 1-oz each) for the cake and half of the package (3 squares, 1-oz each) for the frosting. Melting the white chocolate in the microwave oven is quick and easy, but if you melt it in a pan on the stove, be sure to use very low heat to avoid scorching it.

Nutrition

280 Calories, 15g Total Fat, 2g Protein, 35g Total Carbohydrate, 27g Sugars

Nutrition Facts

Serving Size: 1 Serving
Calories
280
Calories from Fat
130
Total Fat
15g
23%
Saturated Fat
7g
35%
Trans Fat
0g
Cholesterol
45mg
15%
Sodium
180mg
8%
Potassium
40mg
1%
Total Carbohydrate
35g
12%
Dietary Fiber
0g
0%
Sugars
27g
Protein
2g
% Daily Value*:
Vitamin A
4%
4%
Vitamin C
0%
0%
Calcium
6%
6%
Iron
2%
2%
Exchanges:
1/2 Starch; 0 Fruit; 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; 3 Fat;
Carbohydrate Choice
2
*Percent Daily Values are based on a 2,000 calorie diet.
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