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300 ml
Easy
Published 1990
This sharp, sweet sauce, based on an original from
Pare the zest of the lemon in long strips with a potato peeler, being careful to avoid the white pith. Place in a pan with the onions and butter or oil. Cover tightly and cook over a gentle heat, without browning, for 30 minutes, or until really tender. Purée with the lemon juice in a food processor or blender. Add salt and pepper to taste.
