Elizabeth Douglas, The pudding and pastry book (1903)
“ Soufflés should be made in dishes made for the purpose and must be served in the same. The dish should be spread with cold butter, the soufflé mixed not a moment before it is time to put it in the oven (which should be moderately hot) , and served immediately it is taken out. A soufflé is better underdone than overdone.Great care must be taken to whisk in the whites of eggs as quickly and lightly as possible. ”
