Best-Ever Mashed Potatoes

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Silky-smooth mashed potatoes with a hint of garlic and butter, made with the best potatoes for a side dish that's simply perfect. This general-inspired vegetarian ready in about 30 minutes pairs (about 4 cups diced) russet potatoes, unsalted butter, whole milk for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 150 calories and feeds 6, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

★ 3.9 (13 ratings) Prep: 10 min Cook: 20 min Serves 6 General cuisine 150 cal/serving
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Ingredients

Instructions

  1. Step 1: Place 2 lbs diced russet potatoes in a large pot, cover with cold water, and add 1 tsp salt. Bring to a rolling boil over high heat, then reduce to a simmer and cook for 15-18 minutes until the potatoes are fork-tender.
  2. Step 2: Drain the potatoes thoroughly in a colander, shaking off excess water. Return the pot to low heat for 1 minute to evaporate any remaining moisture, then transfer the potatoes back to the pot.
  3. Step 3: Add 4 tbsp unsalted butter and 1 minced garlic clove to the hot potatoes. Mash vigorously with a potato masher until mostly smooth, then gradually stir in 1/4 cup whole milk while continuing to mash until the mixture is creamy and free of lumps.
  4. Step 4: Season with 1 tsp salt and 1/4 tsp black pepper, stirring until fully incorporated. Test for seasoning and adjust if needed, then serve immediately while hot.

Equipment for this recipe

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Frequently asked questions

How long does Best-Ever Mashed Potatoes take to make?

Total time is about 30 minutes (10 min prep + 20 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Best-Ever Mashed Potatoes?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep unsalted butter from drying out.

Can I substitute ingredients in Best-Ever Mashed Potatoes?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Best-Ever Mashed Potatoes for a different number of people?

The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Best-Ever Mashed Potatoes?

General vegetarian like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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