Prepare coriander chili butter: Combine 250g unsalted butter, chopped coriander, seeded and chopped chili, lime juice, salt, and black pepper in a food processor.

Pulse until well blended.

Shape the butter into a cylinder using kitchen foil.

Freeze the butter in foil until needed.

Warm a knife in hot water to slice frozen butter.

Prepare blue cheese butter: Combine 250g unsalted butter, blue cheese, and black pepper in a food processor.

Pulse until well blended.

Prepare black olive butter: Combine 250g softened butter, pitted black olives, thyme leaves, pepper, and salt in a food processor.