Madhouse Munchies Sea Salt & Vinegar Chips Copycat Recipe

If you grew up in NH/VT in the 90s/2000s, you probably remember eating these. The flavor was so strong and your tongue was ruined, but they were the best.
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By Dylan Clay
June 19, 2025

Ingredients Necessary to Make these Chips

These chips had a super punchy flavor – the coating was crusted, visible, and flaky. The bottom of the bag was quite literally covered in this stuff.

This is for 3-4 medium sized russet potatoes:

  • 10 tsp distilled white vinegar powder
  • 2 tsp milk powder
  • 4 tsp sea salt, ground*
  • 1 tsp citric acid, ground*
  • 1/2 tsp malic acid, ground*
  • 1 tsp white sugar, ground*

*Add these ingredients to a pestle and mortar and grind into a fine powder. I’ve found this makes these more cohesive with the vinegar and milk powder and helps keep it on the chip more.

The taste always went like this:

  • Immediate tang (this is citric acid)
  • Vinegar flavor + salt
  • Lingering tang/sour (this is malic acid)

Milk powder is used as a binder to help these ingredients cling to the chips and it has a “Creamy” flavor.

Sugar is used to help balance everything.

Use a Mandolin to Cut Potatoes to 1/16″ Thick

Using an knife is possible – but it’s just not ideal as the chips will finish at different speeds if they’re uneven.

Any small pieces of potato just discard – or know that you may over-fry them later since they’ll finish faster than the other potatoes.

For instance, I always toss the ends and the first 5 or so slices on the mandolin.

Setup Your Frying Station

I have a dedicated deep fryer – if you don’t, just grab a large, wide mouthed pot.

Fill with your choice of fry oil to the fill line or 2-3 inches high; I use vegetable oil but peanut oil is my favorite.

Get the oil to 315F – try not to go higher as you risk burning the chips.

Once at temperature, add all your chips – agitate at first so they don’t stick together and allow them to fry.

frying potato chips in deep fryer at 315F

The temperature will plummet by ~40-50 degrees and then slowly climb back up.

Allow these to fry for ~9-10-ish minutes.

If you notice they’re not bubbling hard, take them off but if there’s still lots of bubbles, allow them to keep frying.

This is after 10 minutes:

kettle cooked chips after deep frying for 10 minutes in vegetable oil

Once they’re not bubbling hard, take out of the oil and put into a large bowl.

Season GENEROUSLY with the above and toss the chips.

Allow to cool and then enjoy.

kettle cooked chips seasoned with homemade salt and vinegar seasoning

Madhouse Munchies Sea Salt and Vinegar Chips Copycat

If you grew up in NH/VT in the 90s/2000s, you probably remember eating these. The flavor was so strong and your tongue was ruined, but they were the best.
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Prep Time10 minutes
Active Time10 minutes
Cooling Time5 minutes
Total Time25 minutes

Ingredients

  • 3-4 whole medium sized, russet potatoes

Salt and Vinegar Seasoning

  • 10 tsp distilled white vinegar powder
  • 2 tsp milk powder
  • 4 tsp sea salt ground
  • 1 tsp citric acid ground
  • 1/2 tsp malic acid ground
  • 1 tsp white sugar ground

Instructions

  • Grab a pestle and mortar or coffee grinder and grind the listed spices into a fine powder.
    4 tsp sea salt, 1 tsp citric acid, 1/2 tsp malic acid, 1 tsp white sugar
  • Then add this to the rest of the ingredients and mix well. This is your seasoning for the chips.
    2 tsp milk powder, 10 tsp distilled white vinegar powder
  • Wash and dry 3-4 medium sized russet potatoes.
  • Remove ends from potatoes and then slice with a mandolin @ 1/8 – 1/16 inch thick.
  • Get your frying oil to 315F.
  • Once at temperature, add your sliced potatoes. Agitate the chips to ensure none are sticking.
  • Allow to fry like this for ~9-10 minutes.
  • When they're golden yellow/brown, take off and put into large bowl.
  • Season generously with prepared salt and vinegar seasoning.
  • Allow to cool for ~5 minutes, then enjoy!

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