{
  "status": "verified-estimate",
  "perServing": {
    "calories": 147,
    "protein": 1.5,
    "carbs": 0.5,
    "fat": 15.7,
    "sugar": 0.1
  },
  "servings": 6,
  "servingBasis": "1/6 of the complete recipe; finished serving weight not measured",
  "ingredientSnapshot": [
    "50 g commercially pasteurized unsalted egg yolks, without added sugar",
    "100 g unsalted butter",
    "15 g lemon juice",
    "20 g water, divided: 15 g yolk mixture and 5 g finish",
    "1 g fine salt"
  ],
  "method": "Ingredient-sum estimate from retained primary USDA and AFCD evidence and explicitly identified supplements; canonical gram quantities divided by stated equal portions",
  "sources": [
    "https://fdc.nal.usda.gov/fdc-datasets/FoodData_Central_sr_legacy_food_csv_2018-04.zip",
    "https://fdc.nal.usda.gov/food-details/167747/nutrients",
    "https://fdc.nal.usda.gov/food-details/172184/nutrients",
    "https://fdc.nal.usda.gov/food-details/173430/nutrients",
    "https://fdc.nal.usda.gov/food-details/173468/nutrients",
    "https://fdc.nal.usda.gov/food-details/174158/nutrients"
  ],
  "notes": [
    "ESTIMATED per serving. Brand, crop, preparation, draining, pan residue and substitutions change actual nutrition. Not laboratory analysis.",
    "Each ingredient retains its primary food description and state. All listed ingredient masses are counted; cooking moisture changes do not change the stated portion count. No generic nutrient-retention factor is invented.",
    "Calories are kcal; protein, total carbohydrate, fat and total sugar are grams. Total carbohydrate includes fiber and is not net carbohydrate. Fiber and sodium are not displayed.",
    "Equal portions or explicitly counted items define the stated recipe yield. US/Metric display changes do not change these canonical inputs.",
    "Primary-source supplements are retained per ingredient where USDA lacks a field; missing values are never silently changed to zero.",
    "Six equal portions include all ingredients. Pasteurized-yolk estimate uses the closest complete plain-yolk primary profile; brands may differ, especially products with salt or sugar, which are excluded.",
    "Contains egg and milk. Gluten-Free requires labels/cross-contact checks; pasteurized yolks do not make the dish shelf-stable."
  ],
  "ingredients": [
    {
      "sourceIndex": 0,
      "sourceText": "50 g commercially pasteurized unsalted egg yolks, without added sugar",
      "components": [
        {
          "ingredientKey": "yolk",
          "fdc_id": "172184",
          "foodDescription": "Egg, yolk, raw, fresh",
          "foodState": "Egg, yolk, raw, fresh",
          "quantity": 50,
          "unit": "g",
          "notes": [
            "Primary profile matches the recorded food state: Egg, yolk, raw, fresh. Canonical edible grams are recorded before recipe preparation.",
            "50 g commercially pasteurized unsalted unsweetened yolk. Existing USDA raw fresh yolk is the closest complete five-nutrient reference, not an exact brand analysis; pasteurization and product variation disclosed."
          ],
          "grams": 50,
          "conversion": {
            "type": "stated-weight",
            "basis": "Canonical edible ingredient mass in grams. No generic density or count conversion."
          },
          "per100g": {
            "calories": 322,
            "protein": 15.86,
            "carbs": 3.59,
            "fat": 26.54,
            "sugar": 0.56
          },
          "contribution": {
            "calories": 161,
            "protein": 7.93,
            "carbs": 1.795,
            "fat": 13.27,
            "sugar": 0.28
          },
          "status": "mapped",
          "retainedEvidence": {
            "sourceRecipeId": "vanilla-custard-sauce",
            "sourceDataset": "data/nutrition.json reconstructed from integrity-verified parts",
            "primaryFile": "data/evidence/nutrition-usda-selected-evidence.json"
          }
        }
      ]
    },
    {
      "sourceIndex": 1,
      "sourceText": "100 g unsalted butter",
      "components": [
        {
          "ingredientKey": "butter",
          "fdc_id": "173430",
          "foodDescription": "Butter, without salt",
          "foodState": "Butter, without salt",
          "quantity": 100,
          "unit": "g",
          "notes": [
            "Primary profile matches the recorded food state: Butter, without salt. Canonical edible grams are recorded before recipe preparation.",
            "All 100 g whole butter and its milk solids retained; not clarified butter."
          ],
          "grams": 100,
          "conversion": {
            "type": "stated-weight",
            "basis": "Canonical edible ingredient mass in grams. No generic density or count conversion."
          },
          "per100g": {
            "calories": 717,
            "protein": 0.85,
            "carbs": 0.06,
            "fat": 81.11,
            "sugar": 0.06
          },
          "contribution": {
            "calories": 717,
            "protein": 0.85,
            "carbs": 0.06,
            "fat": 81.11,
            "sugar": 0.06
          },
          "status": "mapped",
          "sourceEvidence": {
            "file": "evidence/usda-selected-oct8-evidence.json",
            "fdc_id": "173430",
            "dataset": "USDA FoodData Central SR Legacy, April 2018 final release",
            "nutrientRowIds": {
              "calories": "1778391",
              "protein": "1778445",
              "carbs": "1778444",
              "fat": "1778443",
              "sugar": "1778364"
            }
          },
          "retainedEvidence": {
            "sourceRecipeId": "spinach-spaetzle-with-onions",
            "sourceDataset": "data/nutrition.json reconstructed from integrity-verified parts",
            "primaryFile": "data/evidence/nutrition-usda-selected-evidence.json"
          }
        }
      ]
    },
    {
      "sourceIndex": 2,
      "sourceText": "15 g lemon juice",
      "components": [
        {
          "ingredientKey": "lemon_juice",
          "fdc_id": "167747",
          "foodDescription": "Lemon juice, raw",
          "foodState": "Lemon juice, raw",
          "quantity": 15,
          "unit": "g",
          "notes": [
            "Primary profile matches the recorded food state: Lemon juice, raw. Canonical edible grams are recorded before recipe preparation."
          ],
          "grams": 15,
          "conversion": {
            "type": "stated-weight",
            "basis": "Canonical edible ingredient mass in grams. No generic density or count conversion."
          },
          "per100g": {
            "calories": 22,
            "protein": 0.35,
            "carbs": 6.9,
            "fat": 0.24,
            "sugar": 2.52
          },
          "contribution": {
            "calories": 3.3,
            "protein": 0.0525,
            "carbs": 1.035,
            "fat": 0.036,
            "sugar": 0.37799999999999995
          },
          "status": "mapped",
          "sourceEvidence": {
            "file": "evidence/usda-selected-oct8-evidence.json",
            "fdc_id": "167747",
            "dataset": "USDA FoodData Central SR Legacy, April 2018 final release",
            "nutrientRowIds": {
              "calories": "1302093",
              "protein": "1302043",
              "carbs": "1302092",
              "fat": "1302091",
              "sugar": "1302087"
            }
          },
          "retainedEvidence": {
            "sourceRecipeId": "carrot-apple-breakfast-slaw",
            "sourceDataset": "data/nutrition.json reconstructed from integrity-verified parts",
            "primaryFile": "data/evidence/nutrition-usda-selected-evidence.json"
          }
        }
      ]
    },
    {
      "sourceIndex": 3,
      "sourceText": "20 g water, divided: 15 g yolk mixture and 5 g finish",
      "components": [
        {
          "ingredientKey": "water",
          "fdc_id": "174158",
          "foodDescription": "Water, bottled, generic",
          "foodState": "Water, bottled, generic",
          "quantity": 20,
          "unit": "g",
          "notes": [
            "Primary profile matches the recorded food state: Water, bottled, generic. Canonical edible grams are recorded before recipe preparation."
          ],
          "grams": 20,
          "conversion": {
            "type": "stated-weight",
            "basis": "Canonical edible ingredient mass in grams. No generic density or count conversion."
          },
          "per100g": {
            "calories": 0,
            "protein": 0,
            "carbs": 0,
            "fat": 0,
            "sugar": 0
          },
          "contribution": {
            "calories": 0,
            "protein": 0,
            "carbs": 0,
            "fat": 0,
            "sugar": 0
          },
          "status": "mapped",
          "sourceEvidence": {
            "file": "evidence/usda-selected-oct8-evidence.json",
            "fdc_id": "174158",
            "dataset": "USDA FoodData Central SR Legacy, April 2018 final release",
            "nutrientRowIds": {
              "calories": "1836451",
              "protein": "1836433",
              "carbs": "1836450",
              "fat": "1836449",
              "sugar": "1836455"
            }
          },
          "retainedEvidence": {
            "sourceRecipeId": "vanilla-caramel-flan",
            "sourceDataset": "data/nutrition.json reconstructed from integrity-verified parts",
            "primaryFile": "data/evidence/nutrition-usda-selected-evidence.json"
          }
        }
      ]
    },
    {
      "sourceIndex": 4,
      "sourceText": "1 g fine salt",
      "components": [
        {
          "ingredientKey": "salt",
          "fdc_id": "173468",
          "foodDescription": "Salt, table",
          "foodState": "Salt, table",
          "quantity": 1,
          "unit": "g",
          "notes": [
            "Primary profile matches the recorded food state: Salt, table. Canonical edible grams are recorded before recipe preparation."
          ],
          "grams": 1,
          "conversion": {
            "type": "stated-weight",
            "basis": "Canonical edible ingredient mass in grams. No generic density or count conversion."
          },
          "per100g": {
            "calories": 0,
            "protein": 0,
            "carbs": 0,
            "fat": 0,
            "sugar": 0
          },
          "contribution": {
            "calories": 0,
            "protein": 0,
            "carbs": 0,
            "fat": 0,
            "sugar": 0
          },
          "status": "mapped",
          "sourceEvidence": {
            "file": "evidence/usda-selected-oct8-evidence.json",
            "fdc_id": "173468",
            "dataset": "USDA FoodData Central SR Legacy, April 2018 final release",
            "nutrientRowIds": {
              "calories": "1781412",
              "protein": "1781407",
              "carbs": "1781411",
              "fat": "1781410",
              "sugar": "1781458"
            }
          },
          "retainedEvidence": {
            "sourceRecipeId": "vanilla-caramel-flan",
            "sourceDataset": "data/nutrition.json reconstructed from integrity-verified parts",
            "primaryFile": "data/evidence/nutrition-usda-selected-evidence.json"
          }
        }
      ]
    }
  ],
  "totals": {
    "calories": 881.3,
    "protein": 8.8325,
    "carbs": 2.8899999999999997,
    "fat": 94.416,
    "sugar": 0.718
  },
  "missingNutrients": [],
  "reviewedAt": "2026-10-30"
}