This is one perfect serving of mashed potatoes that takes 15 minutes and uses one potato. No giant pot, no mixer, no having to eat mashed potatoes for three days because you made a casserole dish’s worth. Just you, one potato, and some butter.
Why This Works for Cooking for One
One russet potato makes exactly one generous serving of mashed potatoes. You’re not trying to scale down a recipe that feeds eight, you’re not mashing a tablespoon of potatoes in a huge pot. One potato, one person, done.
Shopping Smart for Singles
Potato:
- The waste trap: None if you use the whole thing
- Better way: Buy one large russet potato from loose produce (not a 5-pound bag unless you’ll use them). Use half for mashed potatoes, save the other half for baked potato
Butter:
- The waste trap: None—you’re using it in every Thanksgiving recipe
- Better way: Just keep butter in the fridge
Milk/cream:
- The waste trap: None—you probably have milk in the fridge
- Better way: Use whatever you have—milk, cream, half-and-half, even sour cream works
The Leftover Chain
After making this, you’ll have:
- The other half of the potato → Baked Potato, Oven-Baked Chips, Hashbrowns, Sherry Clam Chowder or cook the whole potato and use cooled leftovers for Potato Pancakes (coming soon)
But if you DO have leftover mashed potatoes:
- Top with cheese and broil
- Make potato pancakes the next day
- Use as the topping for Turkey Pot Pie
- Mix with an egg and fry into patties
- I personally love taking some BBQ pulled pork and some corn and adding it to this for a great meal, especially on cold winter nights.
If you’re also working through:
- Extra butter from Compound Butter → Use flavored butter here
- Leftover sour cream → Use instead of milk for tangy mashed potatoes
- Garlic from Brown Butter Corn → Roast a clove and mash it in
Coming from another recipe?
- Serve these with Turkey Tenderloin and Gravy
- Essential Thanksgiving side dish
Storage Reality Check
- This finished dish: Best eaten immediately (mashed potatoes get gluey when reheated), but will last 2-3 days in the fridge
- Raw potato (cut in half): 1-2 days in the fridge in an airtight container
- Whole cooked potato: 3-4 days in the fridge, use for Potato Pancakes
- Reheat: Add a splash of milk and microwave in 30-second intervals, stirring between
Pro tip: Don’t make this ahead. Mashed potatoes are best fresh, and they only take 15 minutes. Make them last, right before serving, and they’ll be perfect and hot.
Make It Your Own
No milk?
- Heavy cream (makes them richer)
- Sour cream (makes them tangy)
- Chicken or turkey broth (makes them lighter)
- Just butter and potato water (classic)
- Cream of whatever soup
Want to use up other leftovers?
- Compound butter instead of regular butter
- Roasted garlic from another recipe → mash it in
- Cream cheese → add a tablespoon for extra creamy
- Cheddar cheese → stir it in while hot
- Sour cream and chives (loaded baked potato style)
Flavor variations:
- Garlic mashed: Add 1 roasted garlic clove or 1/2 tsp garlic powder
- Herb mashed: Add fresh or dried herbs (rosemary, thyme, chives)
- Loaded: Add cheese, sour cream, bacon bits, chives
- Simple: Just butter, salt, pepper (honestly perfect)
Texture preferences:
- Smooth: Mash thoroughly, add more milk
- Chunky: Mash less, leave some lumps
- Ultra creamy: Use a hand mixer or ricer (seems like overkill for one potato, but you do you)
Single-Serving Pro Tip
Cut the potato in half. Use one half for mashed potatoes tonight, and tomorrow you have the other half ready to make a baked potato, hashbrowns, or oven chips. Two meals from one potato = peak single-person efficiency.
Notes:
Use up extras: Other half of potato in Baked Potato, Chips, Hashbrowns, Pancakes
Save the potato water—you can use it to thin out the mashed potatoes or add to gravy
For garlic mashed potatoes, add 1 roasted garlic clove or 1/2 tsp garlic powder
Mashed Potato
Equipment
Ingredients
Instructions
- Cut potato into even cubes for even cooking
- Boil a pot of water, add potato chunks
- After 3-5 minutes (depending on chunk sizes) start checking for doneness
- To check grab a spoon and spoon up a few pieces of potato, stab them with fork to see if they break in half. If they do, they're ready, if not throw them back in and continue checking every 2 minutes
- Drain water from potatoes
- Add butter, potato soup and mash well