Homemade Mall-Style Soft Pretzels

Bahan-bahan (6 porsi)

• 2/3 cup baking soda
• 2 tablespoons granulated sugar
• 1 packet (2 1/4 teaspoons) active dry yeast
• 1 teaspoon kosher salt
• 1 stick (8 tablespoons) unsalted butter, divided
• 3 cups all-purpose flour, plus more for dusting
• Vegetable oil, for greasing the bowl
• 1 tablespoon coarse pretzel salt, for sprinkling