In a large bowl or stand mixer bowl, add the sourdough discard, egg, whole milk, white sugar, instant dry yeast, thyme, rosemary, and granulated or minced garlic. Whisk all the wet ingredients until smooth.
¾ (200g) cup sourdough starter or discard, 1¼ (310g) cups whole milk, 3½ (42g) tablespoons granulated white sugar, 1 egg, 1 (5g) teaspoon instant yeast, 1 teaspoon dried thyme, 1 teaspoon dried rosemary, 1 teaspoon granulated garlic