1. Mix the diced smoked salmon with the cucumber and dill in a bowl. In a separate bowl, mix the lime juice with the olive oil and season well with salt and freshly ground black pepper.

2. Stir the lime juice and oil into the smoked salmon mixture then carefully fold in the salmon caviar.

3. Place the twists upright in 8 shot glasses, snapping some off if necessary to make them fit (reserve remaining to serve as extras). Divide salmon mixture between the shot glasses and serve.