I'm baking something and I don't have one of the ingredients. Tell me the best substitute, but be honest about how the result will differ — and what NOT to swap with even though Google says it's fine.
WHAT YOU'RE BAKING: {dish — cookies, cake, bread, pie crust, etc.}
FULL RECIPE OR INGREDIENT LIST: {paste}
MISSING INGREDIENT + AMOUNT: {ingredient + quantity}
WHY MISSING: {out / dietary / preference}
WHAT YOU HAVE that might work: {what's_in_the_pantry}
EXPERIENCE LEVEL: {first_time_baker / comfortable / advanced}
STAKES: {Tuesday_night_treat / kid's_birthday / hosting_dinner_party}
FOR THE SUBSTITUTION, GIVE ME:
1. **Best substitute** + exact ratio.
2. **What the texture / rise / color / flavor will change** — be specific. ('Slightly chewier and 10% less golden' beats 'similar results'.)
3. **2nd-best substitute** if first isn't available.
4. **What to NOT substitute with** even though the internet says you can — explain why.
5. **Can I just skip it?** Honest answer.
6. **A small adjustment to the rest of the recipe** to compensate (e.g. if using oil instead of butter, reduce other liquid by 1 tbsp).
7. **The 'don't bother' check** — is the substitution likely to ruin the bake badly enough that you should drive to the store?0 copies·0 saves·3 views
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Sample output
Baking: classic banana bread. Recipe calls for: 3 ripe bananas, 1/2 cup butter, 3/4 cup sugar, 1 egg, 1.5 cup flour, 1 tsp baking soda, salt. Missing: 1/2 cup butter (totally out). Have: olive oil, neutral oil, full-fat Greek yogurt, sour cream, peanut butter. Experience: comfortable. Stakes: Sunday family breakfast — moderate.
1. Best substitute: 1/3 cup neutral oil + 2 tbsp Greek yogurt or sour cream.
Why: oil keeps the bread moist (better than butter for next-day texture), and the dairy adds the small amount of fat-richness butter was contributing.
2. What changes:
3. 2nd-best: 1/2 cup oil straight, no dairy. Even moister; the loaf will be slightly oily-feeling on the tongue but still excellent for breakfast.
Parameters
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FAQ
Bake the substitution version once with a low-stakes occasion BEFORE the dinner party. Substitutions in baking are usually fine; the 5% that go sideways are surprising, and you don't want to discover that with guests at the table. The prompt targets ChatGPT (GPT-4) and lives in the Personal & Career category on mycopyprompt.
This prompt is written for ChatGPT (GPT-4). It's a text/chat prompt — paste it into ChatGPT (GPT-4) (or compatible LLMs like Claude or GPT-4) to get the expected output.
1. Click the Copy button on this page to copy the full prompt. 2. Open ChatGPT (GPT-4). 3. Paste the prompt into a new conversation. 4. Replace any {placeholders} with your specifics, then send. Most prompts produce the right output on the first try; complex ones may need 1-2 iterations.
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Absolutely — most prompts are templates. Look for {placeholders} (curly braces) and swap them with your own values. You can also reword sections, add constraints, or chain it with other prompts.
See the "Sample output" panel above — that's a real example of what ChatGPT (GPT-4) returns when this prompt runs. Your output will vary in wording but should follow the same structure and depth.
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4. Don't substitute with:
5. Can I skip it? No. Fat is structural here — without it, you'll get a gummy, dense brick. Skipping is the worst option of all.
6. Adjustment to the recipe: if using the oil + yogurt combo, no other adjustment needed. If using straight oil (option 2), consider adding 1 extra tablespoon of mashed banana for moisture balance.
7. Don't bother check: This substitution works very well. Don't drive to the store for butter. You'll end up with a moister, longer-lasting banana bread than the original recipe.