Cooking for Guests with Food Allergies: A Practical Checklist

Inviting someone with a food allergy to dinner is an act of trust — theirs, not yours. For a person with a severe allergy, eating food they didn't prepare means betting their health on your ingredient labels and your cutting boards. The good news: hosting safely is not about heroic cooking. It's about a short list of disciplined habits, applied consistently. This checklist walks through them in order.

1. Ask early, and ask specifically

"Any dietary restrictions?" a day before the dinner is too little, too late. Ask when you invite, and ask three specific questions:

• What exactly can't you eat? "Nuts" might mean peanuts (a legume), tree nuts, or both. "Dairy" might mean lactose intolerance or a milk-protein allergy — very different stakes.
• How severe is it? There's a world of difference between a preference ("I avoid gluten"), an intolerance ("dairy upsets my stomach"), and a potentially fatal allergy ("peanuts could send me to the ER"). Severity determines how strict your kitchen protocol needs to be.
• Does trace contact matter? For severe allergies, "made in a facility that processes nuts" and a shared deep fryer are real risks, not fine print.

2. Audit every ingredient — including the ones inside ingredients

Most allergy incidents at home come not from the obvious ingredient but from the hidden one: the fish sauce in the curry paste, the wheat in the soy sauce, the egg in the pasta. Read the label of every packaged product you'll use, every time — recipes change between purchases. Watch for these common hiding places:

When in doubt about a product, swap it for a whole-food alternative you control, or photograph the label and send it to your guest — they read labels every day and will spot problems you won't.

3. Prevent cross-contact in the kitchen

A perfectly allergen-free recipe can still harm someone if it touches contaminated surfaces. For severe allergies, treat the allergen like raw chicken:

• Cook the allergy-safe dish first, cover it, and set it aside before the allergen enters the kitchen.
• Wash hands, boards, knives, and pans with soap between dishes — wiping isn't enough, and neither is the same spoon "just for a second."
• Beware of shared staples: the butter with toast crumbs in it, the jam jar the peanut-butter knife visited, the deep fryer that did the shrimp.
• Don't rely on heat: cooking does not destroy most allergens.

4. Design the menu so safe is the default

The most relaxed strategy is not "one special plate" — it's making the whole meal naturally free of the allergen. One special plate means one mix-up away from an incident, and it makes the guest eat something visibly different. Instead:

• Pick a main that needs no substitution at all (a roast with potatoes and vegetables is naturally free of most of the top allergens).
• Make modular dishes where risky components are optional add-ons: cheese in a bowl next to the salad, not in it; nuts sprinkled at the table, not baked in.
• Serve the safe version to everyone when the difference is minor — nobody misses the soy sauce they didn't know was optional.

5. Label dishes and keep serving utensils separate

At a buffet or potluck, put a small card by each dish listing its allergens ("contains: dairy, gluten"), and give every dish its own serving spoon. A shared spoon migrating between the nut-crusted chicken and the fruit salad silently undoes all your careful cooking. If other guests bring food, label theirs "ingredients unknown" — honesty beats guessing.

6. On the day: communicate, don't improvise

Tell your guest exactly what's in each dish — they get the final call, not you. Never improvise a last-minute substitution without re-checking it ("I ran out of X so I used Y" is how surprises happen). And if the guest carries an epinephrine auto-injector, know where it is. You'll almost certainly never need that information, which is precisely why it's cheap to have.

Frequently asked questions

What are the most common food allergens?

Nine foods account for about 90% of reactions: milk, egg, peanuts, tree nuts, wheat, soy, fish, shellfish, and sesame. The EU additionally requires labeling of celery, mustard, lupin, sulfites, and molluscs — fourteen allergens in total.

Can I just cook "mostly" allergen-free for a severe allergy?

No. For severe (IgE-mediated) allergies, milligram traces can trigger reactions. "Mostly free" is meaningful for preferences and many intolerances, but for a fatal-tier allergy the standard is completely free, including cross-contact.

How do I keep track of several guests' restrictions at once?

Write them down per person, not as one merged list — severity matters. This is exactly what Mazir's allergen profiles do: each family member or dinner guest has their own profile with per-allergen severity, and every dish on the menu is cross-checked against all of them at planning time, not at the table.