Measuring Flour
Make sure you are accurately measuring your flour. I recommend using a digital scale for accurate results. When measuring flour don’t scoop the measuring cup in the flour, instead scoop spoonfuls of flour into the measuring cup with a spoon overfilling the measuring cup, then level it off with a butter knife.
My bread flour measurement is 1 cup of bread flour = 130 grams, 1/2 cup bread flour = 65 grams. You need 455 grams (3 1/2 cups) bread flour for this recipe.