Which of the following breadmaking methods incorporates all of the ingredients at once?

The straight dough method is characterized by the incorporation of all ingredients—flour, water, yeast, and salt—into the mixing bowl at the same time. This method is often used for standard bread recipes and is popular due to its simplicity and efficiency. After mixing, the dough is typically kneaded and allowed to rise before shaping and baking.

In contrast, methods such as sponge dough and poolish involve a pre-ferment stage where a portion of the flour, water, and yeast is mixed and allowed to ferment before being combined with the rest of the ingredients. Rich dough, while it can involve various ingredients formulated for enriched breads (like those containing fats, dairy, or eggs), does not indicate a specific mixing process that differs from the straight dough method in terms of combining everything at once. Hence, the unique aspect of the straight dough method is its all-in-one ingredient incorporation, making it distinctly different from these other varieties.