A. Sourdough Starter 1: • Ingredients: • bread flour (about 200 grams) • water (about 200 grams) • instant dry yeast (2-3 grams, use 1/2 teaspoon in summer, 3/4 teaspoon in winter) • granulated sugar (2 grams) • B. Sourdough Starter 2: • Ingredients: • bread flour (about 25 grams) • water (about 50 grams) • plain yogurt, room temperature (20-25 grams) • Vietnamese Baguette Dough: •