Good-Cooking - Bumpy Highway Cake

Ingredients

• 1 (14 ounce) can sweetened condensed milk (not evaporated milk), divided
• 1 cup Butter flavor Crisco-all vegetable shortening or 1 Butter Flavor Crisco stick
• 1 cup granulated sugar
• 1 cup firmly packed light brown sugar
• 4 eggs
• 2 teaspoons vanilla extract
• 1 cup buttermilk or sour milk (see note)
• 1/2 cup Premium European-style cocoa
• 2 1/2 cups all-purpose flour
• 1 teaspoon baking soda
• 1 teaspoon ground cinnamon
• 1/2 teaspoon salt
• 1 cup hot water
• 1/3 cup European-style cocoa
• 3 tablespoons CRISCO Oil
• 1/4 cup Butter Flavor CRISCO all-vegetable shortening or 1/4 Butter Flavor CRISCO Stick
• Reserved sweetened condensed milk
• 1 cup confectioners sugar' sugar
• 1/2 cup miniature marshmallows, halved
• 1 cup chopped nuts