What spice makes cheddar cheese orange?

The orange color in cheddar cheese comes from annatto, a natural food coloring derived from the seeds of the achiote tree.

Annatto contains a pigment called bixin, which gives the cheese its distinctive orange hue. It also imparts a slightly sweet and nutty flavor.

While annatto is a spice, it's not really a spice that you would typically use in cooking. It's primarily used as a food coloring agent in cheesemaking.