the best mississippi mud cake ever

Ingredients For the best mississippi mud cake ever

• CAKE INGREDIENTS
• 2 c

  flour
• 2 c

  sugar
• 2 tsp

  baking soda
• 1/4 tsp

  salt
• 1/3 c

  cocoa
• 1 c

  buttermilk ( or 1 tbsp vinegar to 1 cup milk, let sit for an hour)
• 1 c

  vegetable oil
• 1 c

  boiling water
• 1 tsp

  vanilla
• 2

  eggs
• ICING INGREDIENTS
• 1 c

  sugar
• 2 Tbsp

  light corn syrup
• 1/4 c

  milk
• 2 Tbsp

  butter
• 1/2 pkg

  chocolate chips (6 oz.)
• 1 tsp

  vanilla
• miniature marshmallows
• 1/3 c

  chopped nuts, optional