Lab Station 01 Modernist Recipe Book

experiment

Vanilla Bean Ice Cream — retrospective whole-Recipe report

Primary subject: recipe/vanilla-bean-ice-cream v1

Hypothesis

Retrospective review expectation stated at recording time: the complete recorded formulation and Method can reach its intended endpoints and produce the following finished dish: The project’s smoother vanilla base, balanced for a dense texture and clean vanilla flavour. This is not a hypothesis documented before historical cooking and is not itself an observed outcome.

Procedure

This record was written on 2026-10-02 from Carlo Kruger’s retrospective report on that date. Historical cooking dates and trial counts were not recorded. The exact whole Recipe Version is Vanilla Bean Ice Cream v1. Its preserved source is recipes-tmp/vanilla-bean-ice-cream.md with SHA-256 8fac87a916afdaaa3b7e9061e545118fad87db8d2b6aab054002de53d3453502. The serialized draft SHA-256 is 51eab235034821085269015c6b98c1c0cd719f102be537ae3a65d78c2aa75ca2. The complete formulation and work sequence below are the recorded specification, not newly observed timings, temperatures or yields. Correspondence to past cooking is attributed to Carlo’s statement that the recipes as recorded were fully tested. The historical reconstruction caveats remain in the unchanged source; Carlo’s 2026-10-02 acceptance applies to this formulation and the packet’s explicit clarifications.

PHASE A — INFUSE

Ingredient Uses

Key Ingredient Quantity Scaling Use
whole-milk Whole milk 330 g 100.00% Whole milk.
vanilla-bean Vanilla bean 5 g 1.52% Vanilla bean.

Method

  1. Split the vanilla bean and scrape the seeds into the milk. Add the pod.
  2. Heat milk and vanilla to 70 C. Cover and infuse for 30 min.

Phase Outputs

Key Phase Output Description
vanilla-infused-milk Vanilla infused milk Prepared intermediate for a later Phase. Use all, including the pod until removal in the next Phase.

PHASE B — MIX AND PASTEURISE

Ingredient Uses

Key Ingredient Quantity Scaling Use
cream-approximately-35-fat Cream, approximately 35% fat 200 g 60.61% Cream, approximately 35% fat.
sucrose Sucrose 85 g 25.76% Sucrose.
dextrose Dextrose 25 g 7.58% Dextrose.
skim-milk-powder Skim milk powder 25 g 7.58% Skim milk powder.
egg-yolk Egg yolk 50 g 15.15% Egg yolk.
ice-cream-stabiliser Ice cream stabiliser 1.5 g 0.45% Ice cream stabiliser.
fine-salt Fine salt 1 g 0.30% Fine salt.

Method

  1. Whisk sucrose, dextrose, skim milk powder, stabiliser, and salt together.
  2. Add cream to the infused milk. Blend in the dry mixture.
  3. Whisk egg yolk in a separate bowl. Temper with the warm dairy mixture, then recombine.
  4. Heat while stirring to 82 C–84 C and hold for 30 s. Do not boil.

Phase Outputs Used

Phase Output Use
Vanilla infused milk Use vanilla-infused-milk. Use all, including the pod until removal in the next Phase.

Phase Outputs

Key Phase Output Description
custard-base Custard base Prepared intermediate for a later Phase. Remove the pod, then cool, age and churn all.

PHASE C — AGE AND CHURN

Technique Applications

Technique Controls Purpose
Ice cream churning Machine instructions; draw approximately -6 C Churn the aged custard.

Method

  1. Remove the vanilla pod. Blend for 30 s, then cool the base to below 4 C as quickly as possible.
  2. Refrigerate for 6 h–12 h.
  3. Churn according to the machine’s instructions until the draw temperature is approximately -6 C.
  4. Pack into a chilled container and harden at -18 C for at least 4 h.

Mix the stabiliser thoroughly with the sugars before adding it to prevent clumping.

Phase Outputs Used

Phase Output Use
Custard base Use custard-base. Remove the pod, then cool, age and churn all.

Results

Carlo retrospectively reported that the recipes as recorded were all successful and fully tested, and approved this whole formulation for production. No further Recipe-specific observations were supplied. Cooking dates, trial counts, detailed tasting notes and instrument measurements were not supplied. Source yields are estimates, not measured results of this retrospective record. Recorded alternatives have no separate variation-specific testing observations in this report.

Decision

Carlo accepted the formulation as recorded, including the explicit reviewed clarifications, for production in the complete 25-Recipe batch on 2026-10-02. Proceed to normal exact-version Promotion after valid serialization, applicable Curation and reference resolution. Technical validation does not perform that human acceptance. A materially changed formulation needs its own exact-version evidence and acceptance; this report does not automatically follow future changes.