Homemade Hamburger Buns

Bahan-bahan (8 porsi)

• 3/4 cup warm water (about 110 ̊F)
• 1 egg (room temperature)
• 3 Tbsp granulated sugar
• 1 1/2 tsp fine sea salt
• 1 Tbsp instant yeast (rapid rise)
• 3 Tbsp unsalted butter (softened)
• 3 1/4 cups Unbleached all-purpose flour (400g)* (plus more as needed)
• 1 egg
• 1 Tbsp water
• 1/2 Tbsp sesame seeds (or Everything Bagel Seasoning)