It seems like an oxymoron, but yes; today weโre making FODMAP-friendly spaghetti aglio e olio. Which, to the uninitiated, translates to pasta with garlic and oil. Yes, garlic. โBut how?โ you ask me. Simple! By using homemade garlic oil.
If youโre on the gram, you might have seen me use garlic oil in my FODMAP friendly hummus recipe recently. I have to say I am fairly new to infused oils โ I had tried a bunch of commercial ones previously and they didnโt do it for me. Homemade, though? Ooooooof, that garlic hit!
The fructans in garlic and onion are water soluble, but not oil soluble. That means that the component of them that makes you feel sick canโt leech into the oil. The end result? Olive oil that is infused with all of the flavour and none of the FODMAPs. Nothing short of a digestively challenged miracle (but hereโs a link to Monash if you donโt trust me).
This is a really straightforward and delicious dish that is also gluten free, nut free and easily made vegan. It is made with pantry basics and can be whipped up on a whim. You can prepare the garlic oil while the pasta water is boiling, so the whole thing takes 20 minutes maximum. You can also build on the dish as you see fit โ add in some roasted vegetables or a protein, for example.

FODMAP-friendly spaghetti aglio e olio recipe notes
I know that it feels weird buying and using garlic. I understand. Please rest assured that this is a FODMAP free way to get some garlic back into your life. A note, however: donโt compress or squeeze the garlic after cooking it in the oil to drain it. This runs the risk of squeezing some of those dreaded fructans into the oil, in my experience. I couldnโt find any information on this specifically, but when I wrung out the garlic to drain it of any oil, I found this was the case. So, set the garlic in a sieve over the oil, and allow it to drain on itโs own terms.
If you need to, use gluten free pasta. If you donโt, donโt!
Personally, I found that the chilli flakes, parsley and parmesan really rounded out the dish. I used Aleppo chilli flakes for their mild and sweet chilli hit and bright red colour. If youโre a bit of a chilli wimp like me, I recommend using a milder chilli (like Aleppo, Kashmiri or Korean red chilli flakes).
The variety of olive oil doesnโt matter too much here. Extra virgin or not, it all works. I would recommend, if you can, using a good quality oil, as it really carries the dish. That said, Iโve used all sorts for this and still turns out nicely.
As weโve discussed, you can add in extra ingredients to bulk out the dish as you see fit. Some leftover roasted vegetables wouldnโt go astray, for example. That said, the more you add, the more you will dilute the garlic oil. You can make extra oil to compensate, but otherwise youโll risk losing that garlicky hit.

FODMAP friendly garlic infused oil
Infusing garlic in oil is a fantastic way to add the flavour of garlic to dishes without the FODMAP content. We will go into the mechanics of this below.
Making your own garlic infused oil results in a much stronger garlic flavour. Store bought garlic infused oil uses stabilisers to ensure the food safety of the product. As such, the flavour isnโt as strong as homemade.
Iโs probably worth including a quick refresher here for people who may be wondering how this dish is FODMAP friendly. The fructan content of both garlic and onion is water soluble but not oil soluble. This means that if you use garlic cloves in a soup, the fructans leech out. However, if you use them in oil (like, say, garlic oil?) the fructans cannot escape. The result is all of the flavour without the FODMAP issues.
More FODMAP friendly garlicky recipes
- Garlic infused ghee, which uses the same principles as my garlic infused oil
- Whipped garlic ghee on fresh gluten free baguettes
- These chilli oil noodles made with garlic infused oil
- Crispy potatoes with garlic chilli oil, zingy yoghurt and a herb salsa

FODMAP-friendly spaghetti aglio e olio
Ingredientsย ย
For the garlic oil:
- up to 8 garlic cloves, peeled
- 1/2 cup (125ml) good quality olive oil
To finish the dish:
- 350 g spaghetti (gluten free if it needs to be)
- 1/2 tsp salt, or to taste
- chilli flakes, to your taste (I like Aleppo, Kashmiri and Korean for their vibrant red colour and mild chilli hit, but any will work
- 1 small bunch finely chopped flat leaf/continental parsley, to taste
- Finely grated parmesan, to your taste (use vegetarian or a plant based alternative)
Instructionsย
To make the garlic oil:
- Add the oil and garlic to a small saucepan over a medium heat. Cook for 5 or so minutes until the oil is fragrant and the garlic is golden brown.
- Once cooked, remove from the heat and set aside for the flavours to meld for around 10-15 minutes, if you have time. Pour the garlic oil through a sieve into a large mixing bowl and set aside.
To finish the dish:
- Prepare the spaghetti in well salted water as per packet instructions. When the pasta is nearly cooked, scoop out 1/2 cup (125ml) of pasta water and set aside. Once cooked, drain the pasta well.
- Add the salt, chilli and half the pasta water to the garlic oil and whisk to combine and form an emulsified sauce. Taste and adjust for your preferences, then add the pasta. Use tongs to coat the pasta in the sauce, using the remaining pasta water if necessary. and finish with a good handful of parsley and parmesan. Serve while warm.

Can you put the instructions first and put all the overly wordy blabber talk at the end.
If you’d like to pay me a full time salary John I can place them in whatever order you like ๐
used this recipe twice but using store-bought garlic infused olive oil, and it was delicious! thanks for the recipe ๐