1 small onion
1 tsp fresh thyme leaves
40驳/1陆辞锄 plain flour
1 bay leaf
8 cloves
grating fresh nutmeg
8 peppercorns
30g/1oz walnut halves, roughly chopped
50驳/1戮辞锄 Stilton, crumbled
40驳/1陆辞锄 butter, plus extra for greasing
75驳/2陆辞锄 cheddar, finely grated
120ml/4fl oz double cream
3 free-range eggs, separated
300ml/10fl oz milk