Coca Cola Cake

Ingredients

• 1 cup (225 ml) soft margarine
• 2 cups (475 ml) all-purpose flour
• 1-3/4 cups (425 ml) sugar
• 3 Tbs (45 ml). cocoa
• 1 tsp (5 ml). soda
• 1 tsp (5 ml). vanilla
• 2 eggs
• 1/2 cup (125 ml) buttermilk
• 1 cup (225 ml) Coca-Cola
• 1-1/2 cups (350 ml) miniature marshmallows
• 1/2 cup (125 ml) soft margarine
• 3 Tbs (45 ml). cocoa
• 1/3 cup (80 ml) Coca-Cola
• 4 cups (950 ml) sifted powdered sugar
• 1 cup (225 ml) toasted chopped pecans