Fashion: The dominant decorative style of the 20s & 30s.?

Questions

The largest island on the west coast of North America is?

Clarified double-strength brown stock?

Flaky, buttery pastry shaped in a quarter-moon?

Salad from the South of France, made with black olives and anchovies?

Delicate egg whites baked at a high temperature, literally means "a breath"?