Twice-baked is the clever part and it's what makes a souffle achievable at home — you bake them, let them collapse, then bake again to serve, so the terror of getting them to the table still risen simply doesn't apply. Chef Emily explained that up front and it changed the whole mood of the session. Folding the whites in without knocking the air out is still the skill, and she was specific about stopping while it looks slightly streaky rather than fully combined.
Ben