Baking

I enjoy baking, most of which is non-mathematical. However, here are a few photos of mathematical baked goods I’ve made over the years.

A Ramsey-theoretic cake I made for my area exam as a PhD student

The Cookieya Conjecture, which won me the “most mathematical” prize at the 2023 Math Bake Fäscht at ETH. See here for an explanation.

Euler's spoilers cupcakes, which won me the “most colorful” prize at the 2025 Math Bake Fäscht at ETH.

These form a pair of mutually orthogonal 10×10 Latin squares; each color of icing and each topping appears exactly once in each row and column, and each combination appears exactly once. Euler conjectured in 1782 that such a configuration does not exist; this example, due to Bose–Parker–Shrikhande (1959), disproves Euler’s conjecture.