Variable pricing?

I’m using confit and the food menu.

However for espresso drinks we have two sizes single and double.

is it possible to have two prices?

say if I took the following code from nova.php:

function menu_item_columns( $columns ) {
		unset( $columns['date'], $columns['likes'] );

		$columns['thumbnail'] = __( 'Thumbnail', 'jetpack' );
		$columns['labels']    = __( 'Labels',    'jetpack' );
		$columns['price']     = __( 'Price',     'jetpack' );
		$columns['order']     = __( 'Order',     'jetpack' );

		return $columns;
	}
'

added it to functions.php (in a child theme) and changed it to:

function menu_item_columns( $columns ) {
		unset( $columns['date'], $columns['likes'] );

		$columns['thumbnail'] = __( 'Thumbnail', 'jetpack' );
		$columns['labels']    = __( 'Labels',    'jetpack' );
		$columns['price']     = __( 'Single',     'jetpack' );
               $columns['price']     = __( 'Double',     'jetpack' );
		$columns['order']     = __( 'Order',     'jetpack' );

		return $columns;
	}