| 1 |
Melt the butter in a heavy-bottomed pan. Before it gets hot, stir in the flour and the dry mustard. Gradually work in the stock until you have a smooth thick sauce, then add enough of the cream to bring this sauce to a good conisistency. |
| 2 |
Cook slowly for 5 minutes. Add the grated horseradish, lemon rind and juice, sugar and salt and pepper. Add the remainder of the cream if necessary. |
| 3 |
Let this sauce stand in a double pan, or in the pan in which it was made, placed over a second pan of simmering water. Cover the surface of the sauce with a circle of buttered paper and allow the flavour to draw for half an hour. |
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