The Borromean link:

The knot table up to 5 crossings:

Some number systems:

Bigons, triangles, squares, and an attempt at a right-angled pentagon:

And finally, some more boringly-shaped, but much crumblier and butterier shortbread:

The recipes* (very easy!):

Malleable shortbread dough, for making interesting shapes:
Caster sugar, unsalted butter, plain flour - in a ratio of 1:2:3
Beat the butter first, then beat in the sugar, then the flour (should be small crumbs by now)
Add a flavour: citrus zest, cinnamon, chopped crystallised ginger, pistachios, etc.
Squash into a solid ball, then shape...
Bake at 150C for 40-45 minutes

Very crumbly and buttery shortbread:
Caster sugar, unsalted butter, plain wholemeal flour, cornflour - in a ratio of 1:3:2:1
Beat the butter first, then beat in the sugar, then the flour and cornflour
Squash into a solid ball, roll out into a square, score some lines along the top to break along after baking
Bake at 150C for 40-45 minutes

*Obviously many variations on these will work equally well or better!

(back to the main cake seminar webpage)