Creating creamy savory mashed sweet potatoes is easy with these detailed steps:

1. Prepare Sweet Potatoes: Peel the sweet potatoes and cut them into uniform chunks to ensure even cooking.
2. Boil Potatoes: Place the sweet potato chunks in a large pot and cover them with water. Add a pinch of salt. Bring to a boil over medium-high heat.
3. Cook Until Tender: Reduce the heat and let the sweet potatoes simmer for 15-20 minutes, or until they are fork-tender.
4. Drain Water: Once cooked, drain the sweet potatoes and return them to the pot.
5. Add Butter and Cream: Add the unsalted butter and heavy cream to the pot with the drained sweet potatoes.
6. Season: Sprinkle in the garlic powder, onion powder, salt, and black pepper to taste.
7. Mash: Use a potato masher or a hand mixer to blend the sweet potatoes until they reach your desired creaminess.
8. Taste and Adjust: Taste the mashed potatoes and adjust seasoning as necessary.
9. Garnish: Transfer to a serving bowl and garnish with chopped chives or parsley if desired.

These steps will guide you effortlessly through the process of making creamy savory mashed sweet potatoes that will impress everyone at your table.