Tough one for toast. You could easily increase the temperature in your toaster but all that would do is toast the top layer and by the time that toasted flavor penetrates deep enough to make good toast, the top layer would be burnt. Cook times and temperatures are a balancing act. You need to heat to penetrate the food without burning the outside layers. You could absolutely toast the top layer of bread in 5 seconds, but the rest of the bread will just be soft bread, which you don't want