add_options_page ( 'XXX', 'XXX', 'manage_options', 'xxx_plugin', 'xxx_options_page' );

function xxx_options_page() { ?>
  <form action="options.php" method="post">
    <?php settings_fields('xxx_plugin_options'); ?>
    <?php $options = get_option('xxx_options'); ?>
    <table class="form-table">
        <tr>
            <th scope="row"><?php _e('Settings', 'xxx') ?></th>
            <td>
                <input type="checkbox" name="xxx_options[some_option]" value="1" <?php checked( 1 == $options['some_option'] ); ?> /> <?php _e("Some Option", "xxx") ?>
            </td>
        </tr>
       // Some more options
     </table>
        <p class="submit">
            <input name="xxx_submit" type="submit" class="button-primary" value="<?php _e('Submit Changes', 'xxx') ?>" />
        </p>
  </form>

<?php }