Tiny pseudocereal, gluten-free, high in protein. Cooks into porridge-like consistency. Pop like popcorn.
Substitutes
Buckwheat Groats — 1:1. Buckwheat groats share amaranth's small-grain format and cook to a similar porridge-like consistency. Buckwheat has a nuttier, more earthy flavor and slightly larger grain. Both are gluten-free pseudocereals rich in protein. Adjust liquid ratios as buckwheat absorbs slightly differently.
Quinoa — 1:1. Quinoa has similar protein content and cooks to a fluffy texture. Both are gluten-free pseudo-cereals.
Millet — 1:1. Millet is another small gluten-free grain with a mild flavor. Slightly less sticky when cooked.