An egg substitute composition includes a substantially egg-less dry mixture that includes a starch and/or lipid source and/or a protein source, and a hydrocolloid system. The hydrocolloid system includes a mixture of hydrocolloids and a crosslinking agent. The crosslinking agent is adapted to crosslink the mixture of hydrocolloids upon the introduction of a liquid. The mixture of hydrocolloids includes a lower-temperature gelling hydrocolloid and a higher-temperature gelling hydrocolloid. The compositions may further include a liquid activator, which may be added to the dry mix to hydrate the composition, and enable use of the composition in any application typically calling for raw eggs, e.g., scrambled eggs, omelets, frittatas, etc. The compositions (in dry or hydrated form) may also be used as egg-substitutes in various different applications, such as in emulsions (e.g., mayonnaise), and baking mixes.