Ingredients

• For the cake
• 1 ¹/₄ cups flour
  
• ¹/₂ cup cocoa powder
  
• ¹/₂ teaspoon baking powder
  
• ¹/₂ teaspoon baking soda
  
• ¹/₂ teaspoon salt
  
• 1 cup sugar
  
• ³/₄ cup milk
  
• 1 egg
  
• ¹/₄ cup canola oil
  

• For the peppermint-marshmallow topping & chocolate ganache
• 3 egg whites
  
• ³/₄ cup sugar
  
• ¹/₂ teaspoon salt
  
• ¹/₂ teaspoon cream of tartar
  
• 1 drop peppermint extract
  
• ¹/₄ cup heavy cream
  
• ¹/₂ cup milk chocolate chips