INGREDIENTS
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2 cup sugar
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1/2 teaspoon salt
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2 all-purpose flour
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1 stick unsalted butter
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1/2 cup vegetable oil
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1/2 cup cocoa
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1/4 cup water
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2 eggs
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1 teaspoon baking soda
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1/2 cup buttermilk
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2 teaspoon vanilla extract
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1 bag miniature marshmallows Icing:
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1 stick unsalted butter, softened
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3 tablespoon cocoa
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6 tablespoon milk
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1 (1-pound) box confectioners’ sugar
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1 cup chopped pecans or walnuts
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1 teaspoon vanilla extract