• Gather your ingredients so that you have everything close at hand on the counter or table. Line a baking sheet with parchment paper or a silicone baking mat.
• Using a box grater, finely grate the mozzarella and cheddar cheese.
  1 cup mozzarella cheese, 1 cup cheddar cheese

Prepare the Dough

• In a large mixing bowl, combine active sourdough starter, warm water, powdered dry milk, softened butter, granulated sugar, kosher salt, and vital wheat gluten. Stir together using a kneading hook.
  1 cup "fed" sourdough starter, 1 cup warm water, 1/3 cup powdered dry milk, 2 tablespoons butter, 1 tablespoon granulated sugar, 1 teaspoon kosher salt, 1 teaspoon vital wheat gluten
• Add whole wheat flour, 1 1/2 cups all-purpose flour, and Herbs de Province blend. Stir until blended, adding remaining flour to form a soft dough. Knead for 3-4 minutes.
  1 cup whole wheat flour, 2 teaspoons Herbs de Provence, 2 cups all-purpose flour
• Place dough in a greased bowl and cover. Allow to rise until double, approximately 2 hours.

Prepare the Filling Mixture

• In a small bowl, combine the prepared shredded cheese, dried parsley, garlic powder, and smoked paprika. Mix well.
  1 1/2 teaspoons dried parsley, 1 teaspoon garlic powder, 1/4 teaspoon smoked paprika

Assemble the Bread Rings

• When dough has fully risen and doubled, punch it down, and turn out onto a lightly floured surface. Divide the dough in half.
• Using a rolling pin, shape one half of the dough into a 15" x 10" rectangle. Sprinkle half of the filling ingredients over the dough.
• Roll up jellyroll-style, starting with a long side. Pinch seams to seal. Form into a ring, pinching the ends together to seal. Place seam side down on the prepared baking sheet. Repeat with the second dough and remaining filling.
• Using a sharp knife or bread lamé, cut 1/2-inch slashes in two-inch intervals for each loaf.
• Cover with a towel or plastic wrap and allow to rise in a warm place until doubled, about 60-90 minutes.

Bake Bread Rings

• Toward the end of the rising time, preheat oven to 350℉, allowing at least 30 minutes for the oven to warm.
• Prepare an egg wash by whisking together one egg and 2 tablespoons water. Brush each ring with the egg wash, and sprinkle both with sesame seeds and grated Parmesan cheese.
  1 large egg + 2 tablespoons water, 2 teaspoons sesame seeds, 4 teaspoons Parmesan cheese
• Bake in preheated oven for 25-30 minutes until loaves are golden brown. Transfer loaves to a wire rack to cool.
• This recipe will make 2 loaves and will serve 8-10 people.