Notes:
9 x 13 metal pan and box brownies was done is <24 mins even though box said way longer. Temp was >210F.
8 x 11 in Breville toaster over was done in around 25 mins. Temp with Thermapen read >200F but they were still chewy.
Don't add salt to caramel until caramel is cooled or salt will melt.
From https://insanelygoodrecipes.com/how-to-tell-when-brownies-are-done/
The brownies won’t set until they’re at 144 degrees, so you’ll want to keep baking until they reach this point. The most optimum temperature for perfectly fudgy brownies is 165 degrees.
But, if you want a cakey brownie, leave it in the oven until it reaches 210 degrees. That’s the internal temperature of a regular cake, so expect a moist and fluffy brownie at this point.