Melt the butter in a heavy based pan. Add the carrot, shallot and celery. Add the flour and stir. Add the nutmeg and sugar followed by the beer and hot chicken stock.
Simmer gently for 20-25 minutes.
Whisk in the creme fraiche, followed by the egg yolk and cream to help enrich the soup. Serve with pork scratchings.
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Per serving: 267 Calories (kcal); 24g Total Fat; (80% calories from fat); 4g Protein; 9g Carbohydrate; 168mg Cholesterol; 842mg Sodium Food Exchanges: 1/2 Grain(Starch); 0 Lean Meat; 1/2 Vegetable; 0 Fruit; 4 1/2 Fat; 0 Other Carbohydrates