I tried out this machine. It's meant for muffins and it still works. You need to heat it (just plug it in till the 2nd light burns there's no temperature button or so) it takes a bit more than 10 minutes. It saves a lot of gas and time.

With these the only minus was the pieces of chocolate are pushed tothe surface and easily burn. I believe it's also better to fill only 1/3 of the paper cup.

♥️🍀