Harvest Potato Mash

A bowl of creamy mashed potatoes topped with melted butter, cracked black pepper, and fresh sage leaves, with a spoon resting inside. The dish is set on a wooden surface.

Print Recipe

No ratings yet

A cozy, swirled mash of russet and sweet potatoes that’s buttery, fluffy, and the perfect balance of savory and sweet.

Prep Time20

Cook Time10

Total Time30

Course: Side Dish

Cuisine: American

Keyword: mashed potatoes, sweet potato

Servings: bowls

Author: The Modern Nonna

Equipment

Ingredients

1 large russet potato peeled and chopped
1 medium sweet potato peeled and chopped
⅓ cup milk dairy or unsweetened alternative
1 tablespoon butter
½ teaspoon salt or to taste
Optional: black pepper or garlic powder to taste

US Customary - Metric

Instructions

Add the peeled and chopped russet potatoes and sweet potatoes to a medium pot with enough cold water to cover, along with a generous pinch of salt.
Bring to a boil, then reduce to a simmer and cook for 15 to 20 minutes, or until the potatoes are fork tender.
Drain the potatoes well and return them to the warm pot. Let them sit for about a minute so the extra steam escapes. This small step keeps the mash fluffy instead of watery.
Using a potato masher, mash the potatoes just enough to break them down. Don’t overmix—you want the russet and sweet potato to stay a little separate so you get those beautiful golden swirls.
Pour in the milk, add the butter and salt, and mash gently again until everything comes together.

Nonna's Tip: warm the milk before adding to help the mash stay smooth and creamy without needing extra butter or cream.

Taste and adjust the seasoning if needed. Add black pepper or a pinch of garlic powder if using. Serve warm and enjoy!

Notes

Texture Tip: For that beautiful marbled look, mash the potatoes gently and stop before they become completely smooth. The contrast between the russet and sweet potato is what makes this recipe special.

Variations: Swap the russet for Yukon Gold potatoes if you prefer an extra creamy mash. You can also stir in roasted garlic, fresh herbs like thyme, or a sprinkle of parmesan for extra flavor.
Dairy-Free: Use your favorite unsweetened plant-based milk and dairy-free butter.
Storage: Store leftovers in an airtight container in the fridge for up to 3–4 days.
Reheating: Reheat gently in the microwave or in a small saucepan over low heat with a splash of milk to prevent dryness.
Freezer Friendly: You can freeze the mash in a sealed container for up to 2 months. Thaw overnight in the fridge and reheat slowly with a little milk to restore the creamy texture.

Nutrition