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Rita’s Famous Mashed Potatoes

FODMAP side dish - mashed potatoes

l don’t know about you but sometimes I find the “easiest” recipes are the hardest for me to nail down.  For example, hard boiled eggs should be easy but not so much for me.  My brother told me about this seriously AMAZING hard boiled egg maker and my life has changed for the better.  This gadget is under $14 and l never have to worry about under boiling eggs again!  But back to the subject at hand…mashed potatoes…luckily I have my mother in law, Rita, to help teach me how to master this delicious FODMAP side dish.  She makes some of the best comfort dishes and if you don’t believe me, check out some of her recipes: Cornish hens, potato pierogies, and roasted bell peppers.   Anytime I go to my in-laws for dinner, I look forward to all of her food but especially her delicious mashed potatoes which also makes for a super easy FODMAP side dish.

I was able to get her secret recipe recently and l am super excited to share it with you.  Let me warn you, it was not easy to wrangle in the specifics.  My mother in law is known for many wonderful attributes but writing down recipes and being exact with measurements is not one of them!  Most of her directions are as vague as “a good amount of butter” so you can imagine all the questions I had to ask.  It was worth the struggle because these mashed potatoes are out of this world!  I was even able to enlist my unenthused husband in helping me mash the potatoes down.  I told him “your dad does this step for your mom, it’s part of the recipe instructions!”  I don’t know if he believed me but it worked. 😉

What is your favorite way to eat potatoes?  I have more potatoes recipes you can check out here: Smashed potatoes, twice baked potatoes, and lemon roasted potatoes.

Rita, Eugene & I <3

Rita, Eugene & I

Potatoes ready to be boiled

Potatoes ready to be boiled

Potatoes being mashed

Potatoes being mashed

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FODMAP side dish - mashed potatoes

Rita’s Famous Mashed Potatoes

  • Author: Fitfabfodmap
  • Prep Time: 5 minutes
  • Cook Time: 40 minutes
  • Total Time: 45 minutes
  • Yield: 4 servings 1x


There is nothing better than homemade mashed potatoes!


  • 3 russet potatoes, scrubbed & peeled
  • salt to season water
  • 3 tablespoons butter + 1 tablespoon butter divided
  • 3 tablespoons green onions (green part only), diced
  • salt & pepper, to taste
  • potato masher


  1. Fill a large pot of water to a boil.
  2. While the water is boiling, cut the scrubbed & peeled potatoes into large chunks (this will expedite the process).
  3. Once the water is at a boil, add potatoes and a generous amount of salt to the water.
  4. Boil potatoes until the potatoes are soft when inserted with a fork, approximately 25-30 minutes.
  5. Drain the water from the pot and put back onto the stove top to evaporate the remaining water.
  6. Using a potato masher, mash the potatoes until a smooth texture begins to form. Add 3 tablespoons of the water and set aside.
  7. In a small skillet, add 1 tablespoon of butter and green onions on medium-high heat. Stir until fully melted for about 1-2 minutes. Being careful not to burn the onions.
  8. Add the onions to the potato mixture and combine one last time. Add salt & pepper to taste.

Keywords: FODMAP side dish, gluten-free side dish, potatoes

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