Open the recipe, tap Edit, then Nutrition (or open the recipe’s Nutrition and tap Edit Nutrition). With Calculate from ingredients on — the starting choice for new recipes — nutrition is added up from the linked ingredients and divided by the servings. The line at the top says how many ingredients were counted.

Turn it off to type the values yourself or Scan a nutrition label. To type the totals for everything the recipe makes, choose Whole recipe above the values; they’re divided by the servings when saved. Recipes imported from a website keep the website’s values until you turn it on.

Tap the checkmark (or Done) to keep your changes. In the recipe editor, go back first.