Milk Bread Nutella Donuts

Ingredients

• Tangzhong (starter)
• ▢ 2 ½ tablespoons (21 g) bread flour
• ▢ ¼ cup (60 g) water
• ▢ 3 tablespoon (45 g) milk
• Milk Bread Dough
• ▢ ½ cup + 1 tablespoon (133 g) whole milk warmed at 105°F or 40°C
• ▢ ½ tablespoon (7 g) yeast instant or active dry
• ▢ 2 ¾ cup (331 g) bread flour
• ▢ ¼ cup (50 g) granulated sugar
• ▢ 1 tablespoon (7 g) milk powder
• ▢ 1 teaspoon (5 g) salt
• ▢ 1 large egg room temperature
• ▢ 4 tablespoon (57 g) unsalted butter softened at room temperature
• Frying and Finishing
• ▢ vegetable oil at least 4 inches deep 350°F or 180°C
• ▢ 1 cup granulated sugar
• ▢ 1 teaspoon ground cinnamon
• ▢ ¼ teaspoon salt
• ▢ 1 cup Nutella