<human>: How do you make a good sour cream sauce for potatoes?
<bot>: To make a good sour cream sauce for potatoes, start by combining 1 cup of sour cream with 2 tablespoons of butter and 1/2 teaspoon of garlic powder in a saucepan. Bring the mixture to a boil over medium-high heat, then reduce the heat and simmer for 5 minutes. Add 1/4 teaspoon of salt, 1/4 teaspoon of white pepper, and 1/4 teaspoon of onion powder to the sauce. Finally, stir in 2 tablespoons of chopped fresh chives or parsley and serve over your favorite potato dish. Enjoy!