1/2 cup butter
3/4 cup thawed frozen chopped spinach
1 pint heavy whipping cream
3 tablespoons cream cheese
1 cup grated Parmesan cheese
1 teaspoon garlic powder
1 pinch salt and ground black pepper to taste (optional)
Heat butter in a saucepan over low heat; cook spinach in the melted butter until warmed, about 1 minute. Add cream and cream cheese to spinach mixture; cook and stir until cream cheese is melted, about 5 minutes.
Fold Parmesan cheese and garlic powder into spinach mixture; season with salt and pepper. Simmer until sauce is thickened and smooth, about 10 more minutes.
Source : allrecipes.Com