HomeCasa Adapt any recipe to a diet or food allergy without losing flavor
Adapt any recipe to an allergy, intolerance or diet (gluten-free, vegan, egg-free...) with reasoned substitutes, adjusted amounts and cross-contact warnings. Designed for ChatGPT, Claude, Gemini and Microsoft Copilot. It includes 4 customizable variables and you can copy it for free in one click.
Intermediate · Text · Pending editorial review
Prompt
Act as a cook experienced in adapting dishes for food allergies, intolerances and specific diets.
Context:
- Original recipe (ingredients and steps): {{recipe}}
- Adaptation needed: {{adaptation}}
- Who it is for and how severe the allergy is, if relevant: {{diner}}
- Ingredients I do not want to use or cannot find: {{avoid}}
Deliverables:
1. Recipe analysis: which ingredients need to change and what job each one does (structure, binding, moisture, flavor, color).
2. Proposed substitutes for each ingredient, with exact amounts and the reason for the choice; where there are several options, the best one and an alternative.
3. The full adapted recipe, with rewritten ingredients and steps, including any changes in time or temperature.
4. What will change in texture and taste and how to compensate.
5. Hidden ingredients to watch for on labels (for example gluten in sauces or stock, milk in deli meats) and how to avoid cross-contact in the kitchen.
6. Common mistakes with this adaptation.
Constraints:
- For severe allergies, remind me to always check each product's label and that this adaptation does not replace advice from an allergist or registered dietitian.
- Never claim a dish is absolutely "safe"; say "free from [ingredient] based on the ingredients given".
- Do not invent nutrition facts; if I mention them, use [FILL IN].
- If the recipe is incomplete or the adaptation is unclear, ask me first.
Format: a substitution table (original, substitute, amount, reason), the adapted recipe and a list of warnings.How to use it
Paste the recipe as it is, with quantities. Say whether it is an allergy, an intolerance or a preference, because the level of caution changes. Do a test run before serving it on an important occasion.
Usage example
Recipe: classic banana bread · Adaptation: gluten-free and egg-free · Diner: child with an egg allergy · Avoid: flours with xanthan gum.
Sample output
Substitution table
| Original | Substitute | Amount | Reason |
|---|---|---|---|
| Wheat pasta | Certified gluten-free lasagna sheets | same weight | provide the layered structure |
| Wheat flour (béchamel) | Cornstarch | half the flour weight | thickens without gluten; use less, it thickens more |
| Grated parmesan | Parmesan labeled gluten-free | same | some pre-grated cheeses contain anti-caking agents |
Changes to the recipe
- Béchamel: whisk the cornstarch into a little cold milk before adding it to the hot milk, and stir constantly until thick.
- Pasta: if using boil-first gluten-free sheets, cook them 2-3 minutes less than the package says; they soften further in the oven.
- Bake 5 minutes less and let it rest 10 minutes before slicing.
Hidden ingredients to watch for
Jarred tomato sauce, bouillon cubes, seasoned ground beef. Always read every label.
Cross-contact
Use clean pots, colanders and cutting boards; never reuse water from cooking wheat pasta.
This lasagna is free from gluten based on the ingredients given. With diagnosed celiac disease, check every product and run any doubts by her doctor or a registered dietitian…
Key facts
- Category
- Cooking · Recipes
- Output type
- Text
- Level
- Intermediate
- Designed for
- ChatGPT, Claude, Gemini and Microsoft Copilot
- Verified in
- Pending editorial verification
- Variables
- Original recipe, Adaptation needed, Who it is for and severity and Ingredients to avoid
- Language
- English
- Price
- Free, no sign-up
- Updated
- Nov 7, 2026
Frequently asked questions
Can I use this prompt for severe allergies?
It helps adapt the recipe, but with severe allergies safety depends on each product’s label and on avoiding cross-contact. If in doubt, talk to an allergist or a registered dietitian.
Why does it analyze what each ingredient does?
Because a good substitute has to do the same job: eggs bind and add structure, wheat flour adds stretch. Swapping without understanding that usually fails.
What is this prompt for?
Adapt any recipe to an allergy, intolerance or diet (gluten-free, vegan, egg-free...) with reasoned substitutes, adjusted amounts and cross-contact warnings.
Which AI tools does it work with?
It is designed for ChatGPT, Claude, Gemini and Microsoft Copilot. We have not verified it in these tools yet, so results may vary between them.
How do I customize the prompt?
Click “Customize” and fill in the variables (Original recipe, Adaptation needed, Who it is for and severity and Ingredients to avoid). The text updates instantly and you can then copy it in one click. Values are stored only in your browser.
Do I need experience to use it?
It is intermediate: it helps to know the topic so you can provide good context and review the result critically.
Is this prompt free?
Yes. Every HomeCasa Prompts prompt is free, with no sign-up or subscription. You can also use them in professional projects.
Can I trust the AI output?
Treat it as a high-quality draft: always check data, figures and important claims before publishing or making decisions.