1. Cook pasta until al dente: rinse and drain.
2. Blend up to 4 tbsp butter to moisten.
3. Melt ¾ cup butter in a large skillet.
4. Add cream and bring to a boil, stirring
5. Reduce heat to medium and cook sauce until
reduced, about 5 minutes.
6. Add smoked salmon and white pepper.
7. Add pasta to sauce and toss gently but
8. Heat to warm if necessary.
9. Serve immediately with a spoon of caviar on top or on the side
of each serving.