Hi there! I understand you're having trouble adding jalapeños or onions to the Double Deluxe burger in the Smashburger app, even though you could do so when you first downloaded it. Let’s figure this out together.

Just to clarify, are you trying to add these as extra toppings during the customization step in the app? Or are you trying to replace existing toppings? Also, have you noticed if this issue is specific to the Double Deluxe burger, or does it happen with other burgers as well?

In the meantime, here are a few things we can try:

1. Check for App Updates: Sometimes menu options change with app updates. Make sure your Smashburger app is updated to the latest version via the Microsoft Store or wherever you got it.

2. Clear App Cache: Since you’re on Windows with a WebKit browser, try clearing your browser cache or app cache — sometimes outdated data can cause options to disappear.

3. Try Re-selecting the Burger: Sometimes starting the order fresh helps. Remove the Double Deluxe burger from your cart and add it again to see if toppings now appear.

4. Confirm Menu Changes: It’s possible that the Smashburger menu or app settings have changed to limit customization on certain items like the Double Deluxe. From recent community feedback, some users noticed that onions or jalapeños can’t be added to some menu items through the app anymore1.

If after these steps you still cannot add jalapeños or onions, I’d recommend contacting Smashburger customer support via their rewards email at [email protected] for confirmation if this is an intended limitation or a technical glitch.

Let me know if you'd like me to guide you through any of these steps!