"This is the BEST Chocolate Buttercream! Chocolate Swiss Meringue Buttercream is beyond airy and silky-smooth, with a rich chocolate flavor and a subtle hint of sweetness!..."
INGREDIENTS
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8 large egg whites
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2 1/4 cup granulated sugar
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1/4 tsp salt
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1 1/2 lb unsalted butter (6 sticks, room temperature)
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1 tbsp vanilla extract (or another flavor of your choice)
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10 oz chocolate (melted but cooled to room temperature (check notes below))