Obviously you’d have to do it under a grille. I think it must have been the English upper class thing to do at one time judging by Sting’s Englishman in New York song lyrics.
Mamy....my super luxury extra-expensive toaster (actually a Lidl own-brand) has very wide slots and can take two thickish slices back-to-back...and it has a "bun rack" too! (All for £15!)