Melt butter in medium saucepan with olive oil over medium/low heat.

Add the garlic, cream, white pepper and bring mixture to a simmer.

Stir often.

Add the Parmesan cheese and simmer sauce for 8-10 minutes or until sauce has thickened and is smooth.

When sauce has thickened add the Mozzarella cheese and stir until smooth. STIR FREQUENTLY.

Place pasta on serving plates and spoon sauce over pasta.

Garnish with parsley, freshly cracked black pepper and more grated parmesan (optional).