Why These Low FODMAP Crackers Work
Most supermarket crackers are a FODMAP minefield: wheat flour brings fructans, and the "savoury" seasoning is almost always onion powder and garlic powder. Making your own solves both problems in about 35 minutes, and the dough needs no resting, no yeast and no special equipment beyond a rolling pin and a baking tray.
The flavour here comes from garlic-infused olive oil, toasted seeds and dried herbs. Garlic-infused oil carries the aroma of garlic without the fructans, because fructans are water-soluble and do not transfer into oil. That single swap is what makes these crackers taste like a proper savoury biscuit rather than a plain cracker.
Ground flaxseed does the binding work that gluten normally does, so the crackers snap cleanly instead of crumbling. For more on how to rebuild texture in gluten-free baking, see our low FODMAP bread guide and the low FODMAP snacks hub.
Ingredients Notes
- Gluten-free flour blend - choose a rice, maize or tapioca-based blend. Avoid blends listing soy flour, chickpea (besan), lupin or amaranth flour, which push the FODMAP load up quickly. Check any new blend with the FODMAP food checker.
- Ground flaxseed - 1 tablespoon per serving is the Monash-aligned comfortable portion; this recipe stays well under that per cracker serving.
- Sesame seeds - low FODMAP at 2 tablespoons, so the amount here is safe when split across 8 servings.
- Pumpkin seeds - low FODMAP at 2 tablespoons (23 g). Keep them chopped so they distribute evenly rather than clumping into one cracker.
- Garlic-infused olive oil - must be commercially produced or made fresh and used the same day, for food-safety reasons. Never leave raw garlic sitting in oil at room temperature.
- Baking powder - most are gluten-free and low FODMAP, but confirm there is no wheat starch filler if you are coeliac.
Method
1. Heat the oven
Preheat to 180C (160C fan / 350F) and line two large baking trays with parchment. A moderate oven is important: hotter than this and the thin edges scorch before the centres dry out.
2. Mix the dry ingredients
In a bowl, whisk together the gluten-free flour, ground flaxseed, sesame seeds, chopped pumpkin seeds, sugar, salt, baking powder, dried herbs and black pepper. Whisking rather than stirring breaks up flour lumps, which matters because you cannot knead this dough much.
3. Add oil, then water
Pour in the garlic-infused olive oil and rub it through with your fingertips until the mixture looks like damp sand. Add 80 ml of the cold water and bring the dough together with a spatula. Add the remaining water 1 teaspoon at a time only if the dough will not hold together when squeezed. It should feel firm and slightly tacky, never sticky.
4. Roll thin
Divide the dough in half. Place one half between two sheets of parchment and roll to 2 mm thick - thinner than feels comfortable. Thickness is the single biggest factor in crispness: 3 mm gives you a biscuit, 2 mm gives you a cracker.
5. Cut and dock
Peel off the top parchment. Cut into 4 cm squares or rectangles with a pizza wheel or knife, then prick each cracker once or twice with a fork. Docking stops them puffing into little pillows. Slide the parchment straight onto a tray.
6. Brush and bake
Brush lightly with olive oil and scatter over a pinch of flaky salt. Bake for 16-20 minutes, rotating the trays at the halfway point, until the edges are golden brown and the centres feel dry and firm. Repeat with the second half of the dough.
7. Cool completely
Slide the parchment onto a wire rack and cool fully. Crackers crisp as they cool - if they still bend after 10 minutes on the rack, return them to the oven for 3-4 more minutes.
Crispness Troubleshooting
| Problem | Cause | Fix |
|---|---|---|
| Crackers bend instead of snapping | Rolled too thick, or under-baked | Roll to 2 mm; bake 3-4 minutes longer and cool fully |
| Edges burnt, centres soft | Uneven rolling | Roll from the centre outwards; trim ragged edges before cutting |
| Dough cracks while rolling | Too dry | Add water 1 tsp at a time and re-roll |
| Crackers taste flat | Under-salted or no infused oil | Brush with oil and flaky salt before baking |
| Gone soft after a day | Stored before fully cool, or humid container | Cool completely, store airtight with a paper towel |
Flavour Variations
- Rosemary and sea salt - 1 tsp finely chopped fresh rosemary in the dough, extra flaky salt on top.
- Everything-style - top with sesame, poppy seeds, chopped chives (green tops only) and salt. Skip onion and garlic granules entirely.
- Cheesy - work 25 g finely grated hard cheese such as parmesan or mature cheddar into the dry mix; both are naturally very low in lactose.
- Herb and pepper - 1 tsp dried thyme plus a generous grind of black pepper.
- Seedy multigrain - swap 1 tbsp of the flour for extra sesame seeds and add 1 tsp chia seeds.
What to Serve Them With
- Lactose-free cream cheese with chopped chives
- Mature cheddar or parmesan slices
- Homemade low FODMAP dips - try the base from our low FODMAP salad dressing thickened with lactose-free yoghurt
- Sliced cucumber, carrot sticks and red capsicum
- A spoonful of low FODMAP marinara for a pizza-cracker snack
- Smoked salmon with lemon and dill
For portion planning around a whole day of snacks, the portion calculator and the FODMAP score estimator help you check that your snacks plus meals stay within a comfortable daily load. Browse more ideas on the snack recipes page.
Storage and Make-Ahead
- Airtight jar, room temperature: 7-10 days. Add a folded paper towel to absorb moisture.
- Refresh: 4 minutes at 160C brings back the snap on day 5 onwards.
- Freeze the dough: wrap the flat disc in parchment and freeze up to 2 months. Thaw in the fridge overnight before rolling.
- Freeze baked crackers: layer with parchment in a rigid container for up to 1 month; crisp from frozen for 5 minutes at 160C.
- Do not store alongside soft baked goods, which release moisture and soften the crackers overnight.
Swaps
- No flaxseed? Use 2 tbsp ground chia instead; the crackers will be slightly darker.
- Seed-free version: leave out both seeds and add 1 tbsp extra flour plus 1/2 tsp more dried herbs.
- Dairy-free: the base recipe already is; just skip the cheese variation.
- No garlic-infused oil? Plain extra virgin olive oil works, but add an extra 1/4 tsp salt and 1/2 tsp dried herbs to compensate for the lost savoury depth.
- Nut version: replace 2 tbsp of the flour with ground almonds - keep to 10 almonds worth per serving to stay in the low FODMAP range.
Frequently Asked Questions
Are shop-bought crackers ever low FODMAP?
Some plain rice crackers and corn thins are, but read the label carefully - onion powder, garlic powder, wheat flour, honey and inulin/chicory root fibre are all common and all problematic. Homemade removes the guesswork.
Can I use normal wheat flour if I tolerate it?
If you have completed reintroduction and know wheat sits well with you, yes - use 150 g plain wheat flour and reduce the water slightly. It is no longer a low FODMAP recipe at that point.
How many crackers is one serving?
This batch makes roughly 40 small crackers across 8 servings, so about 5 crackers per serving. That keeps the seed and flour load comfortably low.
Why are my crackers not browning?
Thin crackers brown from the edges in. If they are pale after 20 minutes, raise the oven to 190C for the final 3 minutes and watch closely.
Can I make these in an air fryer?
Yes - 160C for 7-9 minutes in a single layer, checking at 6 minutes. Work in small batches so air circulates.
Are they suitable during the elimination phase?
Yes, as written and at the stated serving size, assuming your flour blend contains no high-FODMAP flours.
Medical Disclaimer
This recipe and the accompanying guidance are for general information and education only. They are not medical advice, diagnosis or treatment. FODMAP tolerance is highly individual and portion thresholds change from person to person. Work with a registered dietitian experienced in the low FODMAP diet before starting, adjusting or ending an elimination phase, and speak to your doctor about any new or worsening digestive symptoms.
