TypeError: Expected tsp, received tbsp

TypeError: unit mismatch in muffins.sh line 9
    expected: baking-soda 1 tsp
    received: baking-soda 1 tbsp (3x)
  at measure (drawer.c:4)
  at mix (bowl.c:12)
  at bake (oven.c:88)
muffins: rose fast, then fell. flavor: soap, metal.

Impact

Twelve muffins with a bitter, soapy taste. Eaten by nobody except the one person who eats everything.

Root cause

The abbreviations tsp and tbsp differ by one letter and a factor of three. The spoon was taken from the drawer without reading it.

Resolution

Batch discarded and rebaked with 1 tsp. Fixed.

Action items

• Read the spoon, not just the recipe.
• Too much baking soda tastes soapy and metallic, and makes baked goods rise quickly and then collapse. Measure it level.
• Write tablespoon in full when writing a recipe for someone else.

# This is a blameless postmortem. The kitchen is a system. Systems fail. Cooks learn.