First, you need a piece of
hyperbread. Take two
loaves of bread and connecting them at their
vertices. For a secure bond, I recommend
peanut butter (the
creamy kind). The resulting
hyperloaf will be
bigger than a breadbox, but simultaneously smaller.
Now, simply slice off a
topologically equivalent but smaller volume from your hyperloaf. If you want to make large amounts of hypertoast you should consider taking your loaf to the local baker and asking to use their slicing machine, since repeatedly twisting a knife through the
fourth dimension can lead to wrist strain and
RSI.
Toasting your hyperbread is somewhat difficult because most
toasters exist in only three dimensions. You will have to toast one
cross-section at a time. Each section of hypertoast will resemble a piece of toast, but they will have infinitely small fourth-dimensional volume (analogous to a
square created when a
cube crosses through a
plane). You might think, then, that your hypertoast would never be finished. But since an infinitely thin volume of bread requires an infinitely small amount of time to toast, you can just push your bread through and be done! In fact, you'll have to carefully adjust the heat settings to make sure it doesn't
burn.
Theoretical explorations of hyperbread often use very thin breads that don't extend much into the fourth dimension, in order to simplify the calculations. A
seminal work in this field is the
allegorical textbook-
novel flatbreadland.