Final answer:
The verb 'remuez' best completes the instruction from the recipe.
Step-by-step explanation:
The correct verb that best completes the instruction from the recipe is remuez. This verb means 'stir' in English. It is used to indicate that the mixture should be stirred well to avoid the formation of lumps or clumps. Ajoutez means 'add', etalez means 'spread', and mijoter means 'simmer'.
Learn more about French verbs in recipes