I think the best way to do this is with a content-based translation. If we are too literal it won't make much sense. Sautéed away just means he cooked his food his own way disregarding theory.

Escoffier no hacía caso a estas ciencias sin fundamento y cocinaba a su estilo todo lo que quería, dejándose llevar por el placer del paladar y no por la teoría abstracta.

Escoffier ignored this bad science (he invented peach Melba), and sautéed away to his heart's malcontent, trusting the pleasures of his tongue over the abstractions fo theory.