Salmon coulibiac

Name: Salmon coulibiac
Ingredients: 4 eggs; 50g butter; 700g skinless, boneless lightly smoked raw salmon fillets (available from Waitrose & Sainsbury's - if you can't find them, use non-smoked raw salmon fillets), cut into finger thick slices; 2 x 375g blocks all-butter puff pastry; 1 egg, beaten, for glazing; 1 large onion, finely chopped; 1 tsp cumin seeds; 1 tsp coriander seeds; 4 cardamom pods; 2 star anise; 200g basmati rice; 1 bay leaf; 4cm piece cinnamon stick; 400ml fish stock or water; zest 1 lemon, juice ½; large bunch dill