Madeira Sauce

¹⁄₂ onion
¹⁄₂ carrot
1 bay leaf
2 cloves
1 slice ham
1 gill brown stock or gravy
¹⁄₂ pint brown sauce (see [p. 118])
1 glass Madeira
Cayenne
Juice of half a lemon

Slice the onion and carrot. Put them, with the bay leaf, clove and the ham, cut in small pieces, in a sauce-pan. Cover with the brown stock. Boil up quickly. Simmer half-an-hour. Season. Add Madeira, brown sauce and lemon juice. Rub through a fine sieve. Colour with caramel colouring (see [p. 13]) if not dark enough, and stir in the butter.