Mississippi Mud Cake recipe for managing PCOS and pregnancy on Fertility Chef

Ingredients

• 2 cups sugar
• 1/2 teaspoon salt
• 2 cups all-purpose flour
• 2 sticks unsalted butter, divided, 1 softened
• 1/2 cup vegetable oil
• 1/2 cup cocoa, plus 3 tablespoons, divided
• 1/4 cup water
• 2 eggs
• 1 teaspoon baking soda
• 1/2 cup buttermilk
• 3 teaspoons vanilla extract, divided
• 1 bag miniature marshmallows
• 6 tablespoons milk
• 1 (1 lb) box confectioner's sugar
• 1 cup chopped pecans, (or walnuts)