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Mashed sweet potatoes with thyme in white bowl with fork.
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5 from 1 vote

Mashed Sweet Potatoes with Garlic Herb Butter

This savory Mashed Sweet Potatoes recipe is a great easy side dish! It's creamy and tossed in an herb garlic butter. Rich and flavorful!
Prep Time10 mins
Cook Time15 mins
Total Time25 mins
Course: Side Dish
Cuisine: American
Keyword: mashed sweet potatoes, garlic mashed sweet potatoes, herb mashed sweet potatoes,
Servings: 5
Calories: 323kcal
Author: Christine Rooney


  • 4-5 large sweet potatoes yields 5-6 cups
  • 4 Tbsp. butter
  • 2 cloves garlic
  • 4-5 sprigs fresh thyme or herb or choice or ¼ - ½ tsp. dried herbs of choice
  • ¼ tsp. garlic powder
  • ½ tsp. kosher salt
  • ½ tsp. pepper


  • Wash and peel 4-5 sweet potatoes. Remove any tough or dark spots from the potatoes.
  • Dice the sweet potatoes into a uniform size.
  • Place the potatoes in a large pot and pour water into the pot covering the potatoes by a few inches. Add a generous pinch of salt.
  • Bring the potatoes to a boil and cook for 15-18 minutes (cooking times may vary depending on the size of the potatoes). The potatoes are done when easily pierced with a fork or knife. Drain the sweet potatoes using a strainer.

For The Garlic Herb Butter:

  • While the potatoes are boiling add 4 Tbsp. of butter to a small sauce pan. Heat the pan to medium low and slowly melt the butter. As the butter is melting add 2 cloves of garlic, 4-5 sprigs of fresh thyme (or herb of choice), and ½ tsp. garlic powder. Cook until the butter is melted and fragrant. Remove from heat.
  • Return the cooked potatoes to the large pot and mash them using a potato masher. Slowly add the melted butter along with ½ tsp. kosher salt and pepper to the potatoes. Continue to mash until completely combined.
  • Serve the mashed sweet potatoes immediately. Garnish with fresh herbs if desired.


Feel free to substitute any variety of fresh herbs in place of thyme. Herbs that pair well with sweet potatoes include rosemary, tarragon, parsley, or sage.
Dried thyme or Italian seasoning may be used in place of fresh herbs.
Adjust the herb, garlic powder, and salt and pepper levels to your liking.
This recipe may be doubled if serving more people.


Serving: 1cup | Calories: 323kcal | Carbohydrates: 56g | Protein: 5g | Fat: 10g | Saturated Fat: 6g | Cholesterol: 25mg | Sodium: 426mg | Potassium: 917mg | Fiber: 8g | Sugar: 11g | Vitamin A: 38922IU | Vitamin C: 8mg | Calcium: 92mg | Iron: 2mg