tip
Stir a thickening sauce with a purpose
Mixing helps distribute both starch and heat while an adult cooks.
Try this
When the recipe calls for stirring during thickening, have the adult cook use a steady, controlled motion that reaches different parts of the pan with an appropriate utensil.
Why it helps
Moving the mixture helps keep starch granules distributed and reduces uneven heating and lump formation.
When it applies
This applies to suitable starch-thickened sauces and the adult-led starch investigation.
Keep in mind
More vigorous stirring is not automatically better. Follow the recipe’s method and heat instructions; children can observe and record from their designated position instead of handling a hot pan.
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Behind the explanation
- Exploratorium: Why Roux Sauces Thicken ↗
Starch granules take up water and swell during gelatinization; stirring helps distribute granules and heat and reduces lump formation.
Version 1 · Sources checked 2026-09-25