Apricot Marmalade

Ingredients

• 2 lbs ripe apricots (Pared, halved, and stoned; weight measured after paring and stoning, as per Leslie's instruction)
• 8 –10 apricot kernels (Extracted from cracked stones; blanched in boiling water and skins removed; Leslie specifies cracking a portion of the stones for this purpose — they lend a faint bitter-almond note)
• 1 ½ lbs loaf sugar (or refined white granulated sugar) (Leslie specifies three quarters of a pound of loaf-sugar per pound of fruit; loaf sugar was the premium refined sugar of her era, equivalent to modern white granulated or caster sugar)
• ½ cup water (To dissolve the sugar initially; Leslie does not specify water but standard practice of the era used a small amount to prevent scorching before the fruit releases its juice)
• 1 tbsp fresh lemon juice ([MODERN ADAPTATION] Not specified in Leslie's original receipt; added here for pectin activation and brightness. Omit for strict historical fidelity.)

Instructions

1. 1{'dependencies': {'description': 'Initial step', 'depends_on_ids': []}, 'description': 'Prepare the Fruit and Kernels. Pare, halve, and stone the apricots. Weigh the prepared fruit — you need 2 pounds net. Set the fruit aside in a wide, heavy-bottomed preserving pan or enameled Dutch oven. Crack approximately 10 of the apricot stones with a nutcracker or the flat of a heavy knife. Extract the kernels inside. Blanch the kernels in boiling water for 1 minute, drain, and rub off the papery brown skins. The blanched kernels should be pale and almond-shaped. Set aside.', 'performTime': None}
2. 2{'dependencies': {'description': 'Previous step', 'depends_on_ids': []}, 'description': 'Dissolve the Sugar. Combine the sugar and water in the preserving pan over medium heat. Stir gently until the sugar is fully dissolved, about 3–5 minutes. Do not allow the mixture to boil before the sugar is dissolved, or it may crystallize. Once dissolved, increase the heat and bring to a boil.', 'performTime': None}
3. 3{'dependencies': {'description': 'Previous step', 'depends_on_ids': []}, 'description': "Cook the Fruit. Add the prepared apricots to the boiling syrup. Stir to combine. The fruit will release considerable liquid. Cook over medium-high heat, stirring frequently to prevent sticking, for 30–45 minutes. As the mixture cooks, skim any foam that rises to the surface with a slotted spoon. Leslie's receipt does not specify a set-point test, but the marmalade is ready when it thickens noticeably on the spoon and a small amount dropped onto a chilled plate wrinkles when pushed with a finger (approximately 220°F / 104°C on a candy thermometer at sea level).", 'performTime': None}
4. 4{'dependencies': {'description': 'Previous step', 'depends_on_ids': []}, 'description': 'Add the Kernels and Finish. When the marmalade is nearly set, stir in the blanched apricot kernels and, if using, the lemon juice. Cook for a further 2–3 minutes. The kernels will remain whole, suspended in the finished preserve, and contribute a subtle bitter-almond note that was characteristic of the original receipt. Remove from heat.', 'performTime': None}
5. 5{'dependencies': {'description': 'Previous step', 'depends_on_ids': []}, 'description': "Pot and Seal. Ladle the hot marmalade into clean, hot half-pint jars, leaving ¼-inch headspace. Leslie's original method involved sealing with brandy-soaked paper and covering the pots with leather or bladder — the standard pre-rubber-seal preservation technique of her era. For modern use, process sealed jars in a boiling-water bath for 10 minutes according to current USDA canning guidelines, or refrigerate and consume within 3 weeks without processing.", 'performTime': None}