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Craving a packet of Lays? These low calorie sour cream & onion potato chips are the alternative you never knew you needed.

They’re crispy, flavorful, and come in at just 235 calories for a huge portion.
The best part? You still get that classic sour cream and onion taste without the greasy heaviness.

Ingredients you’ll need
- 450g thinly sliced and peeled potatoes
- Light cooking oil spray
- 1/2 tbsp salt
- 1 tsp dried parsley
- 1/2 tbsp garlic powder
- 1/2 tbsp onion powder
- 1 tsp sweetener (monk fruit or white sugar)
- 1/2 tbsp buttermilk powder
How to make low calorie sour cream & onion potato chips

Start by washing and peeling your potatoes. Slice them as thin as possible. A mandolin works best here, but a sharp knife will do if you’re careful.

Next, soak the slices in an ice bath. This step helps remove excess starch and gives you that crispier finish.

After about 10 to 15 minutes, drain and lightly boil the slices for a few minutes. This helps them cook evenly later.

Pat the potatoes completely dry. This part matters more than you think. Any moisture will stop them from crisping up properly.
Lightly spray with cooking oil, then cook using your preferred method. Air frying is the fastest, but the oven or even microwave works too. Flip halfway through for even crispiness.

While they cook, mix your seasoning. Combine salt, parsley, garlic powder, onion powder, sweetener, and buttermilk powder in a bowl.
Once the chips are golden and crispy, toss them in the seasoning while still warm. That’s it. Fresh, flavorful chips ready to go.

How long does it take + serving ideas
From start to finish, these low calorie sour cream & onion potato chips take about 25 to 30 minutes. Most of that is hands-off time while they cook.
Serve them fresh for the best crunch. I love pairing them with a light dip, adding them to a lunch bowl, or just enjoying them straight from the tray while they’re still warm.
Why you will love this recipe
- Super low calorie for a large portion
- Packed with flavor from simple pantry spices
- Easy to make with minimal prep
- Budget-friendly and uses basic ingredients
- Perfect for meal prep or snack cravings
- Great alternative to store-bought chips
Tips, variations, and easy swaps
Slice your potatoes as thin as possible for maximum crunch. Thicker slices will be softer, more like roasted potatoes.
If you don’t have buttermilk powder, you can skip it or use a tiny bit of powdered milk with a splash of vinegar for a similar tang.
Want to switch it up? Try a spicy version with chili powder, a cheesy version with nutritional yeast, or a BBQ-style blend with smoked paprika and a touch of brown sugar.
Storage & meal prep
These chips are best eaten fresh, but you can store leftovers in an airtight container at room temperature for up to 2 days.
If they lose their crispiness, just pop them back into the air fryer or oven for a few minutes to bring them back to life.
For meal prep, slice and soak your potatoes ahead of time, then cook when ready.

Low Calorie Sour Cream & Onion Potato Chips
Ingredients
Method
- Wash, peel, and thinly slice the potatoes.
- Soak slices in ice water for 10–15 minutes, then drain.
- Boil for a few minutes, then pat completely dry.
- Lightly spray with cooking oil.
- Cook using one method:
- – Air fry at 200°C for 10–15 minutes
- – Oven bake at 200°C for 15–20 minutes
- – Microwave for 8–10 minutes
- Flip halfway through cooking.
- Mix all seasoning ingredients in a bowl.
- Toss hot chips in seasoning and serve immediately.
Notes
- Slice evenly for consistent cooking
- Do not skip drying the potatoes
- Adjust salt to taste
- Air fryer gives the crispiest result
- Watch closely near the end to avoid burning
Nutrition
- Calories: 235
- Carbs: 50g
- Protein: 14g
- Fat: 0g
Give them a try
If you love chips but want something lighter, these low calorie sour cream & onion potato chips are such a game changer.
They’re simple, satisfying, and honestly kind of addictive in the best way.
Save the pin below and come back to when you’re ready.

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