Select Sear/Saute and set the temperature to high.
Add ¼ cup of the butter.
When the butter melts, add the onions, thyme, salt, and pepper to the pot and cook for 5 minutes.
Reduce the temperature to medium (3), and cook for another 10 minutes, stirring occasionally.
Add the garlic and cook for 1 more minute.
Add the cooking sherry and cook for 2 minutes, scraping up any browned bits.
Add the broth and Worcestershire sauce.
Hit cancel. Close the lid and slide to pressure.
Select High Pressure, and set the cook time to 15 minutes. Hit Start.
When the time is complete, do a quick release of the pressure by moving the pressure release valve to vent.
Carefully transfer the soup to serving dishes.
Spread the remaining butter on the bread slices.
Add the air fryer basket to the inner pot and arrange the toast. Top with cheese.
Close the crisping lid. Select air fry, 390 ° F, and set the time to 5 minutes. Hit start.
Carefully remove the toast from the Foodi and serve over the soup.