First foods database
🧅 Red onion for babies: when and how to serve it
Can babies eat red onion? Yes, from about 6 months, cooked. Red onion is milder and sweeter than white onion once softened, and is a great way to add flavour to baby food without salt.
Good source of: Vitamin C, Fibre, Antioxidants
How to serve red onion by age
6 to 9 months
Finely chop and gently cook in a little oil until very soft and sweet, then blend into purées, lentils or meat dishes. It is mainly a flavour base rather than a food on its own. Slow cooking for 10 to 15 minutes brings out its natural sweetness.
9 to 12 months
Stir soft-cooked red onion into pasta sauces, curries and egg dishes. Roasted wedges, cooked until floppy, can be offered as a soft finger food.
12 months and up
Use cooked or finely chopped red onion in family meals. Small amounts of finely sliced raw onion are fine in salads for toddlers who are confident chewers.
Choking safety
Raw onion pieces are crunchy and slippery. For babies, cook until fully soft so the layers squash easily.
Gagging is common and noisy while babies learn to eat. Choking is usually silent. Always stay with your baby while they eat, sitting upright. How to help a choking baby (NHS).
Good to know
- Onion can cause wind in some babies.
Easy ideas
- Soft red onion in a tomato sauce
- Roasted red onion with sweet potato
- Red onion in mild lentil dal
Goes well with
Recipes with red onion
Weaning with OBubba
Log first foods in seconds. OBubba spots the allergens for you.
Track every food your baby has tried, see reactions over time, and let OBubba gently pace new allergens one at a time. Free to download.
Questions parents ask
Can babies eat red onion?
Can babies eat red onion? Yes, from about 6 months, cooked. Red onion is milder and sweeter than white onion once softened, and is a great way to add flavour to baby food without salt.
Can babies eat raw red onion?
It is best cooked for babies. Toddlers can try small, finely chopped raw amounts. Rinsing chopped raw onion in cold water softens the sharp taste.
Is onion bad for babies' tummies?
No, but it can cause a little wind. Cooking softens it and makes it gentler.
Sources
OBubba gives general information based on UK guidance. It is not medical advice and does not diagnose anything. Every baby is different. If your baby has a known allergy, severe eczema or a medical condition, speak to your doctor or health visitor before starting solids. Learn baby first aid, and in an emergency call your local emergency number (999 in the UK).