Buttery Brioche Hamburger Buns

These rich brioche buns are made with a generous amount of butter and eggs. They make great homemade hamburger buns or can be served with a salad.

Ingredients

• For the Starter:
• 0.6666666666666666 cup milk (lukewarm, about 85 F)
• 2.25 teaspoons active dry yeast
• 0.75 cup (3 1/4 ounces) all-purpose flour
• 3 tablespoons sugar
• For the Dough:
• 3 cups plus 2 tablespoons (14 ounces) all-purpose flour
• 1.5 teaspoons salt
• 4 large eggs (lightly beaten)
• 8 tablespoons (1 stick) unsalted butter (at room temperature)
• 1 teaspoon olive oil or vegetable oil for bowl
• 1 tablespoon cornmeal for dusting
• For the Egg Wash:
• 1 large egg
• 1 tablespoon water
• For the Optional Topping:
• Sesame seeds or poppy seeds