The Best Chocolate Cupcakes

Ingredients

• 1 ⅔ cups granulated sugar (333g)
• 1 ½ cups all-purpose flour (188g)
• ⅔ cup natural cocoa powder (65g) (note 1)
• 1 Tablespoon cornstarch (note 2)
• 1 ½ teaspoons baking powder
• 1 ¼ teaspoons baking soda
• 1 teaspoon table salt
• ½ cup canola or vegetable oil (118ml)
• 1 large egg + 1 large egg yolk, room temperature preferred
• 2 teaspoons vanilla extract
• ⅔ cup whole milk, room temperature preferred (157ml)
• 1 cup hot coffee (see note 3, may substitute hot water) (236ml)
• 1 batch chocolate frosting or preferred frosting