Rosemary Garlic Mashed Potatoes (Thanksgiving Sides Potatoes)

Silky, herb-infused, make-ahead mashed potatoes in 30 minutes, perfect for Best Thanksgiving Potatoes and cozy winter dinners.

These creamy Yukon Golds pull in rosemary-garlic aroma with zero fuss so your holiday plate tastes restaurant-level without babysitting the pot.

Side view of creamy rosemary-garlic mashed potatoes with butter—Thanksgiving Sides Potatoes, Mashed Potato Thanksgiving.

Why You’ll Love It

  • Holiday-ready flavor: Rosemary-garlic infusion equals Best Thanksgiving Potatoes without extra steps—just steep and mash.
  • Ultra-creamy texture: Yukon Golds + warm dairy deliver cloud-soft Cream Mashed Potatoes that hold beautifully on the table.
  • Make-ahead friendly: Reheat without drying—ideal for Thanksgiving Sides For Two or a full crowd.
  • Flexible for seasons: Works for Best Fall Meal Recipes and effortless Recipes For Dinner Winter comfort.
  • Scale up or down: Easy slider—half batch for two, double for a crowd.
  • Diet-smart swaps: Dairy-free olive-oil version or lighter half-and-half option that still tastes luxurious.

Ingredients (notes only)

  • Yukon Gold potatoes – naturally buttery; mash smooth without being gluey.
  • Garlic cloves – smash to infuse, then mash in for a gentle bite.
  • Fresh rosemary – steep sprigs in butter/cream; finely mince a little for finish.
  • Butter + heavy cream (or half-and-half) – warm before mixing so potatoes don’t seize.
  • Sour cream (optional) – extra tangy richness for holiday vibe.
  • Kosher salt & white/black pepper – season water and finish to taste.
  • Olive oil (swap) – for dairy-free Cream Mashed Potatoes.

Step-by-Step Instructions

  1. Prep & boil: Peel and quarter 3 lb Yukon Golds. Start in cold, well-salted water; boil until a knife meets little resistance, 15–18 min.
  2. Infuse dairy: While potatoes cook, warm 6 Tbsp butter, ¾ cup cream (or half-and-half), 6 smashed garlic cloves, and 2 rosemary sprigs on low 5–8 min (do not simmer).
  3. Drain & dry: Drain potatoes thoroughly; return to the hot pot over low heat 1–2 min to steam off moisture.
  4. Mash/ricer: Pass potatoes through a ricer or mash by hand until smooth.
  5. Add warm infusion: Strain out rosemary sprigs; mash in the warm butter-garlic-cream, a bit at a time, until silky.
  6. Finish: Stir in 2–3 Tbsp sour cream (optional). Season with salt and pepper.
  7. Garnish: Fold in 1 tsp finely minced rosemary (optional) and a drizzle of melted butter or olive oil.
  8. Hold warm: Keep over the lowest heat or in a warm slow cooker on WARM with a lid and a splash of cream.

Meat safety note: Not applicable for this vegetarian recipe. (For poultry entrées served alongside, aim for 165°F / 74°C internal.)

Pro Tips

  • Salt in layers: Salting the water seasons the potatoes from the inside; finish again at the end.
  • Warm everything: Cold dairy tightens starch—always add warm.
  • Dry first: The “steam-dry” step prevents watery mash and boosts creaminess.
  • Texture control: Use a ricer for plush, lump-free results; a masher for rustic.
  • Make-ahead gloss: Stir in a little extra warm cream when reheating to restore shine.

Variations

  • Olive-Oil & Dairy-Free: Replace butter/cream with ½ cup good olive oil + ½–¾ cup warm unsweetened oat milk.
  • Roasted Garlic: Roast a whole head at 400°F for 40–45 min; squeeze in for sweeter garlic notes.
  • Parmesan Swirl: Add ½ cup finely grated Parm for Christmas dinner flair.
  • For Two (Mini Batch): Use 1½ lb potatoes, halve everything else—ideal for Thanksgiving Sides For Two.
  • Slow Cooker Finish: Keep mashed potatoes warm on WARM up to 3 hours; add splash of cream before serving.

How to Serve

  • With turkey and gravy, next to green beans and cranberry sauce.
  • Swirl in gravy wells; top with extra rosemary butter.
  • Weeknights: with meatloaf, braised mushrooms, or rotisserie chicken.

Make Ahead & Storage

  • Make-Ahead (1–2 days): Cool, cover, and refrigerate. Reheat covered at 325°F for 25–35 min, or in a pot on low with ¼–½ cup warm cream.
  • Fridge: 4 days in airtight container.
  • Freeze: Up to 1 month (best with cream/ butter). Thaw in fridge; reheat gently with added warm cream.

FAQs

Can I skip peeling? Yes—use scrubbed Yukon Golds for a rustic, skin-on mash.
How do I avoid gluey potatoes? Don’t overwork; use a ricer and add warm dairy gradually.
Best potatoes? Yukon Golds for creamy; Russets for extra light and fluffy; a 50/50 mix works great.
Can I keep them warm for hours? Yes—slow cooker WARM with lid, stir in warm cream before serving.

Simple Nutrition Table (estimate per ½-cup serving)

Calories: ~280 | Fat: 16g | Carbs: 30g | Protein: 4g | Sodium: varies by salt
Nutrition is an estimate; adjust for swaps/portion size.

Sarah

Rosemary Garlic Mashed Potatoes

Creamy, fragrant mashed Yukon Gold potatoes infused with garlic and rosemary. Holiday-perfect, easy to scale, and make-ahead ready for Thanksgiving or Christmas dinners.
Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes
Servings: 8 servings
Course: Side Dish
Cuisine: American
Calories: 280

Ingredients

  • 3 lb Yukon Gold potatoes, peeled and quartered
  • 6 cloves garlic, smashed
  • 2 sprigs fresh rosemary, plus 1 tsp finely minced for garnish
  • 6 Tbsp unsalted butter (or ½ cup olive oil for dairy-free)
  • ¾ cup heavy cream (or half-and-half; more as needed)
  • 2–3 Tbsp sour cream (optional)
  • 1½–2 tsp kosher salt, plus more to taste
  • ½ tsp white or black pepper
  • 1 Tbsp kosher salt (for boiling water)

Equipment

  • Large pot
  • small saucepan
  • Potato ricer or masher
  • fine mesh strainer
  • Mixing spoon
  • measuring cups and spoons

Method

  • Place potatoes in a large pot, cover with cold water by 1 inch, and add 1 Tbsp salt. Bring to a boil and cook until tender, about 15–18 minutes.
  • While potatoes cook, warm butter, cream, smashed garlic, and rosemary sprigs in a small saucepan over low heat for 5–8 minutes. Do not simmer.
  • Drain the potatoes well and return to the hot pot. Let them steam-dry for 1–2 minutes off heat.
  • Rice or mash the potatoes until smooth and fluffy.
  • Strain out the rosemary sprigs and slowly mix in the warm infused butter-cream mixture a bit at a time until silky.
  • Stir in sour cream if using. Season to taste with salt and pepper. Garnish with minced rosemary before serving.

Nutrition

Calories: 280kcalCarbohydrates: 30gProtein: 4gFat: 16gSaturated Fat: 10gPolyunsaturated Fat: 1gMonounsaturated Fat: 4gCholesterol: 40mgSodium: 540mgPotassium: 620mgFiber: 3gSugar: 2gVitamin A: 550IUVitamin C: 15mgCalcium: 40mgIron: 1mg

Notes

Dairy-Free: Use olive oil and warm unsweetened oat milk.
Extra-Light: Replace half the Yukon Golds with Russets.
Equipment: Potato ricer for extra smooth texture; fine mesh strainer to remove rosemary.
Scaling: For two, use 1½ lb potatoes; for a crowd, double the recipe.
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