Recipe Adaptation Prompt for Dietary Needs

What this prompt does

Recipe substitutions fail when they're made without understanding what each ingredient does functionally. Eggs in baking aren't there for flavor — they're structure and binding. Swapping them for applesauce without adjustment produces a different texture, not just a different egg. This prompt makes substitutions with function in mind, and tells you what to expect from each swap.

Works for any dietary restriction: vegan, gluten-free, dairy-free, nut allergies, low-sodium, low-FODMAP, Kosher, Halal, and more.

The prompt

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How to use it

1. Paste the full recipe, not just the ingredients — cooking methods sometimes need to change along with ingredients.
2. Be specific about the restriction — "dairy-free" vs. "vegan" vs. "lactose intolerant" have different implications. Lactose intolerant can often have butter (very low lactose); vegan can't.
3. Name what you want to preserve — if texture matters most (e.g., cookies that hold together), say so. If flavor is the priority, say that instead.
4. Try the honest assessment section — this is where the AI will tell you if an adaptation fundamentally changes the dish. Better to know before you make it for guests.

Example output (partial)

Recipe: Classic chocolate chip cookies (contains butter, eggs, all-purpose flour)
Needs: Vegan + gluten-free

Substitutions:

1. Butter → Vegan butter (e.g., Miyoko's or Earth Balance)

• What butter does: Fat for richness and spread, moisture, flavor, and structure
• Vegan butter works nearly 1:1 here — same fat content, similar emulsification
• Change in result: Very minimal. You may notice slightly less richness if the butter is palm-oil based rather than cashew-based. Spread may vary by brand.
• Ratio: 1:1

2. Eggs → Flax eggs (1 tbsp ground flaxseed + 3 tbsp water per egg)

• What eggs do in cookies: Binding (keeps the cookie together) and a small amount of leavening
• Flax eggs handle binding well; the leavening replacement is less complete
• Change in result: Cookies will be slightly denser and may spread less. The texture is chewier, less crisp at the edge.
• Adjustment: Add ¼ tsp extra baking soda to compensate for lost leavening

3. All-purpose flour → 1:1 gluten-free flour blend (e.g., Bob's Red Mill 1-to-1)

• What flour does: Structure, absorbs moisture, provides the base
• 1:1 GF blends are designed for direct substitution — works well in cookies
• Change in result: Slight graininess if the blend is rice-flour heavy. Refrigerating the dough 30 minutes before baking reduces spread and improves texture.

Honest assessment: Close to the original. The texture will be slightly denser and chewier than classic butter+egg cookies, but noticeably good. Most people eating them without comparison would enjoy them as cookies, not as "vegan cookies."

Variations

For a meal-planning adaptation

"I'm adapting a week's worth of meals for a guest with [RESTRICTION]. Here are 5 recipes. Tell me which can be easily adapted and which would need to be replaced entirely."

For a restaurant dish recreation

"Recreate this restaurant dish at home but make it [RESTRICTION]. I don't have the full recipe — I'll describe the dish and you suggest an approach."

Common pitfalls

• Don't: Assume all substitutions are equal in every recipe type. A flax egg works in cookies but not in a soufflé. Always check the honest assessment.
• Try instead: Ask: "Is there a recipe type where this substitution won't work, and should I use a different approach?"

Who uses this prompt

• Home cooks: Adapting family recipes for dietary changes
• Food bloggers: Creating inclusive recipe variations
• Hosts: Accommodating guests with restrictions without making a separate dish
• Parents: Adapting school lunch recipes for allergic children