You need to add the WooCommerce Mini Cart to the Header in the Elementor page builder. TFMini Cart is the perfect solution. With this widget, you can add enhanced cart and checkout functionality to your WooCommerce store and improve your potential customer’s buying experience. And upon clicking or hovering, the mini cart will display all the contents of the cart in a compact yet complete way.
TFMiniCart & Product v1.0.0 - WooCommerce Product, Mini Cart Widget for Elementor