Espresso Cupcakes

Name: Espresso Cupcakes
Prep time: 20 min
Cook time: 20 min
Total time: 40 min
Cuisine: American
Ingredients: 1/2 cup unsalted butter (melted); 1/2 cup light brown sugar; 1/2 cup granulated sugar; 2 large eggs (room temperature); 1 teaspoon vanilla extract; 1 1/2 cups cake flour (substitute all purpose flour); 1 tablespoon espresso powder; 1 1/2 teaspoons baking powder; 1/4 teaspoon kosher salt; 1/2 cup brewed espresso or coffee (substitute whole milk); 1 cup unsalted butter (room temperature); 3 cups powdered sugar; 2 teaspoons espresso powder; 2 tablespoons heavy cream (as needed); chocolate covered espresso beans (optional )