Put rice in boiling salted water. Leave to soak for about 20 minutes. In the meantime, roast almond slivers in a pan without fat until golden brown, then stir into the rice. Wash the salmon, dab dry and cut into slices.
Season with salt and pepper. Fry in hot fat for about 1 minute on each side. Sprinkle with lemon juice and place in an ovenproof dish. Drain the shrimps. Peel and finely chop the shallots.
Sauté the shrimps and shallots in the frying fat. Deglaze with white wine, boil down for 2 minutes at high heat. Mix egg yolk and 2 tablespoons of cream. Fill shallots with stock and remaining cream, bring to the boil briefly and season with salt and pepper.
Add the sauce thickener while stirring, bring to the boil again. Stir in egg yolk, do not let it boil any more, season if necessary. Spread the sauce on the salmon. Bake in the preheated oven (electric cooker: 225 ° C/ gas: level 4) for about 8 minutes.
Cut the carambola into slices. Serve the gratinated salmon with almond rice in portions. Serve garnished with carambola slices and fresh mint.