Sending mail confirmation after checkout, Laravel 7 - php

Question

I'm new to Laravel and I'm trying to figure out how to send confirmation emails to customers after they place an order.
I've read a few articles about it but couldn't find the answer I needed.
The following are the things I have done with the order process:
I have and Order controller which collects the informations I need when a customer pay for his products and save them to the database:
public function index()
{
$order = Order::all();
return response()->json(
[
'results' => $order,
'success' => true
]
);}
public function create(Request $request)
{
$data = $request->all();
$order = new Order();
$order->fill($data);
$order->save();
return response()->json([
'order' => 'New order created'
]);}
This is the Model:
class Order extends Model
{protected $fillable = ['customer_name','customer_address', 'customer_telephone','total','customer_email','user_id','cart'];
public function dishes() {
return $this->belongsToMany('App\Dish');
}}
And this is my web.php file:
Auth::routes();
Route::middleware('auth')
->namespace('Admin')
->name('admin.')
->prefix('admin')
->group(function () {
Route::get('/', 'HomeController#index')->name('home');
Route::resource('orders', 'OrderController');
Route::resource('restaurants', 'RestaurantController');
});
Route::get('{any?}', function() {
return view('guests.home');})->where('any', '.*');
And my api.php:
Route::get('/restaurants', 'Api\RestaurantController#index');
Route::get('/restaurant/{slug}','Api\RestaurantController#show');
Route::get('/users', 'Api\UserController#index');
Route::get('/categories', 'Api\CategoryController#index');
Route::post('/orders', 'Api\OrderController#store');
Can someone guide me step-by-step on what to do to collect the current email address that a customer has used and then send them a confirmation email?
Any help (also links to tutorials dealing with this situation) will be really appreciated