Mister Polyhedron, George Hart, has come up with a way of slicing your bagel so the two halves are interlocked but unbroken. It's one of the weirdest pages of culinary instruction I've seen, but as breakfast for geeks (or, for that matter, fans of 1950s Italian lampshades) it's perfect.
"It is much more fun to put cream cheese on these bagels than on an ordinary bagel. In additional to
the intellectual stimulation, you get more cream cheese, because there is slightly more surface area."
Click here to get the full instructions.