CMC Baking, Pastry, & Garde Manger Arts 3 â Questions and Answers
Question 1: A baker wants to increase extensibility and reduce elasticity in bread dough. Which technique best accomplishes this?
- Adding more salt
- Allowing an autolyse rest before mixing (Correct answer)
- Increasing water temperature
- Using a pre-ferment with high yeast percentage
Correct answer: Allowing an autolyse rest before mixing
Autolyseâresting hydrated flour before mixingâallows gluten to develop passively, breaking down some bonds and increasing extensibility while reducing dough toughness.
Question 2: For a classic French pùté en croûte, the dough used must withstand extended baking without becoming soggy. Which dough is traditionally correct?
- Pùte sucrée
- Pùte brisée
- Hot water paste (pùte à pùté) (Correct answer)
- Pùte feuilletée
Correct answer: Hot water paste (pùte à pùté)
Hot water paste (pùte à pùté) is sturdy, minimally flaky, and stands up to the long baking and juices released by the forcemeat filling in a pùté en croûte.
Question 3: During chocolate ganache preparation, an emulsion breaks and the mixture appears greasy and separated. What is the most effective corrective action?
- Add more cold cream and whisk vigorously
- Add a small amount of warm cream or water and blend with an immersion blender (Correct answer)
- Melt the mixture and start over completely
- Add lecithin powder and refrigerate immediately
Correct answer: Add a small amount of warm cream or water and blend with an immersion blender
Adding a small amount of warm liquid and blending with an immersion blender re-establishes the emulsion by reintegrating fat and water phases.
Question 4: What is the function of cream of tartar (potassium bitartrate) when added to whipped egg whites?
- It provides lift by releasing carbon dioxide
- It stabilizes the foam and lowers pH, strengthening the protein network (Correct answer)
- It increases sweetness so less sugar is needed
- It speeds up denaturation for quicker whipping
Correct answer: It stabilizes the foam and lowers pH, strengthening the protein network
Cream of tartar is an acidulant that lowers egg white pH, which tightens the protein network and stabilizes the foam against over-whipping and collapse.
Question 5: A garde manger chef is preparing a classic chaud-froid sauce to coat a display centerpiece. What gives white chaud-froid sauce its characteristic semi-opaque finish?
- Reduced cream added at the end
- Béchamel or velouté combined with gelatin (Correct answer)
- Aspic clarified with egg whites
- Hollandaise sauce thinned with gelatin
Correct answer: Béchamel or velouté combined with gelatin
White chaud-froid is made by fortifying béchamel or velouté with gelatin so it sets firmly when cold while retaining the sauce's opaque, creamy appearance.
Question 6: A pastry chef needs to create a mirror glaze (glacage miroir) with a perfectly smooth finish. What is the critical step immediately before pouring the glaze onto a frozen cake?
- Whipping the glaze to incorporate air
- Blending the glaze and straining it through a fine-mesh sieve to remove bubbles (Correct answer)
- Reheating the glaze above 60°C to re-melt gelatin
- Cooling the glaze below 20°C to increase viscosity
Correct answer: Blending the glaze and straining it through a fine-mesh sieve to remove bubbles
Blending and fine-straining removes air bubbles that would create a pitted, dull surface, ensuring the glaze flows smoothly over the frozen mousse.
Question 7: When scaling up a bread formula, which ingredient ratio must be recalculated rather than scaled linearly?
- Flour
- Water
- Salt and yeast (Correct answer)
- Fat
Correct answer: Salt and yeast
Salt and yeast are not scaled linearly in large batches because their effects are relative to fermentation kinetics and dough strength, not just weight; over-scaling yeast causes runaway fermentation.
CMC Baking, Pastry, & Garde Manger Arts 3
A baker wants to increase extensibility and reduce elasticity in bread dough.
Which technique best accomplishes this?