Big Giant Cinnamon Rolls

Bahan-bahan (8 porsi)

• 1 cup (240ml) buttermilk*, warmed to about 100°F (38°C)
• 2/3 cup (135g) granulated sugar, divided
• 1 and 1/2 tablespoons (14g) active dry yeast (2 standard size packets)
• 1/2 cup (8 Tbsp; 113g) unsalted butter, softened to room temperature and cut into 4 pieces
• 2 large eggs, at room temperature
• 1/2 teaspoon salt
• 4 and 1/2 cups (563g) all-purpose flour or bread flour (spooned & leveled), plus more as needed
• 2 teaspoons canola, vegetable, or olive oil for bowl (or use nonstick spray)
• 6 Tablespoons (85g) unsalted butter, softened to room temperature
• 1/2 cup (100g) granulated sugar
• 1 and 1/2 Tablespoons ground cinnamon
• 4 ounces (113g) full-fat brick cream cheese, softened to room temperature
• 1 cup (120g) confectioners’ sugar
• 1 Tablespoon (15ml) heavy cream or milk
• 1/2 teaspoon pure vanilla extract