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Marmite roast potatoes

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Like most Brits I’m a big fan of roast potatoes! I’ve got quite a few different recipes on here now, including Ninja Foodi roast potatoes, rosemary and garlic roast potatoes and I have some more in the works too! These Marmite roast potatoes are my new favourite and my whole family love them too.

These work great with a roast dinner but also as a side dish to just about any tasty meal. We love to serve these alongside a slow cooker whole chicken and air fryer pigs in blankets in particular, as this is extra tasty, and I often make onion gravy to accompany this too.

I love crispy roast potatoes, and don’t want them to be greasy. These potatoes are soft and fluffy inside and crispy on the outside. I love to cook them in the Ninja Foodi but you can adapt my methods for the oven (see below fore more details).

This particular recipe was originally cooked in the *OP500UK, which has now been replaced with the *OL550UK but as long as your Ninja Foodi has the air crisp/air fryer and pressure cooker options you’ll be able to recreate this recipe at home in under 30 minutes. I’ve also made it in the OL750UK more recently with the same results too.

If you don’t have a Ninja Foodi, or the right model for this particularly recipe, then be sure to check out my air fryer potatoes or OXO roast potatoes instead! They’re super simple and don’t require pressure cooking, although personally I don’t think they’re a patch on these roast potatoes which are full of delicious crisp edges and super fluffy inside! You can adapt these to be Marmite roast potatoes using the measurements below too.

Why not check out some of my air fryer potato recipes or my best potato recipes too?

A white enamel tray of Marmite roast potatoes with a jar of Marmite alongside

Ingredients for Marmite roast potatoes:

250ml water

600g potatoes

1 teaspoon Marmite

1/2 teaspoon vegetable or olive oil

Roast chicken with sage leaves and text overlay that says what to do with roast chicken leftovers

How to make Marmite roasties in the Ninja Foodi pressure cooker:

Peel, wash and chop the potatoes.

Add to the Ninja Foodi pressure cooker bowl.

Add 250ml of water (minimum!)

Pressure cook for 3 minutes. Use the quick release setting too.

Drain your potatoes, discard the boiling water.

Shake the drained potatoes in the pressure cooker pot. This will rough up the edges a little.

Transfer the potatoes to the air fryer basket.

Air fry on 190C for 10 minutes on the air fryer / air crisp setting.

Mix together the marmite and oil. Use 1/2 teaspoon of water to loosen slightly if you feel it is needed.

Pour over the mixture and then mix well. You can do this in a bowl and then return to the air fryer basket if you prefer.

Air fry at 200C for 6-8 minutes. Shake after 3-4 minutes to avoid the potatoes sticking to the air fryer basket.

Depending on the size of your potato you may need a few more minutes. Exercise your common sense here – if they’re not crispy then they’re not fully cooked!

I find that 18 minutes is perfect for the size of potato that I like to serve to my family. We tend to get medium potatoes, but if you’ve got large ones just cut them up into smaller pieces.

Air fryer mashed potatoes in a bowl with chives and melted butter on the top

Save time and effort by using frozen roast potatoes in the air fryer; simply make sure to tweak the cooking times by increasing them slightly and keeping a close eye near the end of the cooking time.

Best potatoes for Marmite roast potatoes?

I believe that Maris Piper are the absolute best potatoes to turn into roast potatoes, just from my own experience. Russet potatoes are another favourite of mine, but they’re not always readily available in the supermarket here in the UK where I shop. King Edward are great too. A good all rounder.

Which are potatoes are the best to roast? < This might give you a help with choosing the best potatoes for roasties!

Can you cook these from frozen?

You can! Personally I would pressure cook them, drain the potatoes, fluff them up lightly and then air fry / air crisp for 5 minutes. After this I’ve freeze flat on a tray for an hour or two and then pop in to a freezable container!

Add the Marmite mix, then cook these from frozen for around 20 minutes at the same temperature as stated in the recipe here. Shake the air fryer basket at least once during the cooking process.

Preparing in advance and freezing is a great way to save a little of the time/effort/washing up on a Sunday in particular, which is ideal if you’re having guests! I love to make a variety of foods that we can enjoy when I’m short on time, and these potatoes are always a winner.

Ninja Foodi baked potatoes cooked and served with salt and pepper and chives on top of a piece of baking paper

Want to make this recipe with baby potatoes?

Reduce the cooking time if you wish to do this. I would pressure cook for just 1 minute, quick release and then air fryer for a minimum of 10 minutes in the air fryer. Halfway through I’d add the marmite mixture and then just keep an eye on the potatoes to ensure that they are crispy before serving.

What herbs work well with Marmite roast potatoes?

I find thyme works well. I love to wash the stalks and then rip off all the leaves. I’ll add these at the same time as adding the Marmite mixture, just to save on time and effort.

Air fryer diced potatoes in a metal tray. There are paprika and rosemary ones, and ones just seasoned with salt and pepper. The text reads air fryer diced potatoes

Want to make these in the oven instead?

I’d suggest parboiling for around 7-8 minutes in boiling salted water. Fluff up, then place into the oven, on a roasting tray, for around 20 minutes at gas mark 6 (200C / 390F), add the Marmite drizzle and then repeat for at least 20 more minutes.

Is this recipe suitable for Vegans?

Yes! Marmite is suitable for Vegans, and as long as you pay attention to the vegetable oil you’re using there is no reason why this can’t be perfect for Vegans! It would go great alongside a Nut roast or similar too.

Parmentier potatoes served in a tin foil serving tray with a sprig of rosemary

Do marmite roast potatoes taste like marmite?

A little! The taste is not overpowering like pure Marmite can be, and my daughter who doesn’t like Marmite on toast happily eats these with no complaints!

When do you add Marmite to roast potatoes?

I like to add the marmite around halfway through the cooking time. This is sufficient for the potatoes to be cooking well, and the Marmite to stick to them, but not to burn during the cooking process.

Lemon pepper fries with lemon pepper seasoning, a lemon, olive oil, peppercorns and a yellow tea towel.

Are these slimming world friendly?

I believe you’d want to swap the oil out for spray oil, but apart from that it is very simple to make these Slimming World friendly.

Using the air fryer is a great way to get crispy food without lots of oil and can be a great help with your weight loss goals too.

Want to make sure your Marmite roast potatoes are crispy?

For me I feel that fluffy up the potatoes after you’ve parboiled or pressure cooked them for a short time means the edges are a little battered up and then you have more surface area to crisp up.

Looking for some other air fryer potato recipes?

I’ve got a whole host of delicious potato based air fryer recipes here and these are some of my favourites:

Three air fryer hasselback potatoes that have been cooked in the air fryer in a red stoneware baking dish from Le Creuset

How to cook Marmite roast potatoes:

A white enamel tray of Marmite roast potatoes with a jar of Marmite alongside
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Marmite roast potatoes

Delicious Marmite roast potatoes cooked in the Ninja Foodi

Course Side Dish
Cuisine British
Keyword air fryer, Marmite, Ninja Foodi, potato, Roast dinner
Prep Time 5 minutes
Cook Time 23 minutes
Servings 3 servings
Calories 285 kcal
Author Katykicker

Ingredients

  • 250 ml water
  • 600 g potatoes
  • 1 teaspoon Marmite
  • 1/2 teaspoon vegetable oil
  • 1/2 teaspoon of water

Instructions

  1. Peel, wash and chop the potatoes.
  2. Add to the Ninja Foodi pressure cooker bowl.
  3. Add 250ml of water (minimum!)
  4. Pressure cook for 3 minutes. Use the quick release setting too.
  5. Drain your potatoes, discard the water.
  6. Shake the drained potatoes in the pressure cooker pot. This will rough up the edges a little.
  7. Transfer the potatoes to the air fryer basket.
  8. Air fry on 190C for 10 minutes using the air fryer or air crisp setting.

  9. Mix together the marmite and oil. Use 1/2 teaspoon of water to loosen slightly if you feel it is needed.
  10. Pour over the mixture and then mix well.
  11. Air fry at 200C for 6-8 minutes using the air crisp setting again. Shake after 3-4 minutes to avoid the potatoes sticking to the air fryer basket.

  12. Depending on the size of your potato you may need a few more minutes. Exercise your common sense here – if they’re not crispy then they’re not fully cooked!
  13. I find that 18 minutes is perfect for the size of potato that I like to serve to my family.
Nutrition Facts
Marmite roast potatoes
Amount Per Serving
Calories 285
* Percent Daily Values are based on a 2000 calorie diet.

Note: All calorie information is for demonstration purposes only and is based on the specific uncooked ingredients that I used when creating the recipe.

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A white enamel tray of Marmite roast potatoes with a jar of Marmite alongside
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