Short answer Weigh the ingredients you care about, use a consistent raw-or-cooked convention, add the recipe totals, and divide by the portions. The second time you make the dish, it becomes a saved meal instead of a new calculation.

Choose one weighing convention

Raw and cooked weights can both work. Problems start when you compare a raw ingredient entry with a cooked one or switch conventions halfway through a recipe. Pick the version that matches your food database and repeat it for the meals you make often.

For packaged ingredients, the label is usually the best source. For basic foods, USDA FoodData Central is a useful reference. You do not need to find the “perfect” entry for every onion; focus first on ingredients that move the total: oil, butter, cheese, meat, grains, nuts, and sauces.

Total the batch, then portion it

StepWhat to doWhy it works
1. IngredientsRecord the main ingredients and amountsCreates one recipe total
2. BatchAdd calories and macros for the whole pot or panCooking changes water, not the basic accounting
3. PortionsDivide by the servings you actually makeTurns a batch into a meal
4. SaveName the recipe and keep the conventionMakes next time almost automatic
The recipe math
Total recipe calories and macrosone batch
Batch divided by four servingsone portion
Portion saved as “Tuesday chili”repeatable
A saved recipe is a future shortcut.

Do not hide the fats and sauces

Oil in the pan, dressing on the salad, cheese on top, and a spoonful of peanut butter can matter more than a handful of herbs. You do not need to fear them; you just want them represented so the finished meal is not accidentally undercounted.

If the amount varies from plate to plate, keep the base recipe consistent and log the extra sauce separately. That is usually faster than rebuilding the entire recipe.

Make leftovers your advantage

Home cooking gets easier after the first pass. Save the dish, take a quick photo of the portion, and adjust only when you materially change an ingredient. If you are unsure, send the description to Macros for Humans and use the estimate as a starting point.

Sources

This is a practical logging method, not a claim that any food needs to be measured perfectly. Packaged-food labels and food databases use rounding and different preparation assumptions; aim for a useful, repeatable estimate.