"This white chocolate mousse cake is made with moist white cake, fluffy white chocolate mousse, and decadent white chocolate buttercream...."
INGREDIENTS
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1 1/3 cups good quality white chocolate chips (215g)
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1 1/2 cups heavy cream or heavy whipping cream, cold - divided (360ml)
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1/4 cup powdered sugar (30g)
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1 tsp vanilla extract (4mL)
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pinch of fine salt (less than 1/8 tsp)
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1 cup or 2 stick unsalted butter, room temperature (226g)
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3 cups granulated sugar (600g)
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1 cup pasteurized egg whites from a carton or about 7 egg whites, room temperature (235g)
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3 cups cake flour (360g)
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2 1/2 tsp baking powder (10g)
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1 tsp salt (6g)
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1 1/2 cups full-fat sour cream, room temperature (380g)
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1/4 cup vegetable oil (56 ml)
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1 tsp vanilla extract (4ml)
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2 cups unsalted butter, room temperature (452g)
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7 cups powdered sugar (900g)
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1 tsp vanilla extract (4ml)
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1/2 tsp salt (3g)
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1/3 cup heavy cream or whipping cream (75g)
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1 cup white chocolate chips, melted and cooled (160g)
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Stand mixer or electric hand mixer
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Whisk attachment
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Greaseproof Cake Board
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Spinning Cake Stand
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Icing Comb
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Large Offset Spatula
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Bench Scraper