Mocha Chocolate Chip Espresso Cupcakes - Cupcake Fanatic

Ingredients

• 1/2 cup plus 3 1/2 tablespoons (101 grams) all-purpose flour
• 1/4 cup plus 2 tablespoons (31 grams) Dutch process cocoa powder
• 1/2 teaspoon (2.5 grams) baking soda
• 1/8 teaspoon (.5 grams) baking powder
• 3/8 teaspoon (1 gram) salt
• 3 1/2 tablespoons (56 grams) eggs
• 1/2 cup plus 2 tablespoons (126 grams) sugar
• 1/2 teaspoon (2.5 grams) vanilla extract
• 2 teaspoons (10 grams) coffee extract
• 1/4 cup plus 2 1/2 tablespoons (86 grams) mayonnaise
• 1/4 cup plus 3 tablespoons (105 grams) water, at room temperature
• 16 tablespoons (2 sticks) unsalted butter, at room temperature
• 2 cups powdered sugar
• 1 teaspoon vanilla extract
• 2-3 teaspoons coffee extract
• pinch of salt
• mini chocolate chips for topping