Sweet Potato Cornbread With Maple Butter

Ingredients

• 1 cup all-purpose flour
• 1 cup yellow cornmeal
• 1/2 cup granulated sugar
• 1/4 cup brown sugar
• 1 tablespoon baking powder
• 1 teaspoon kosher salt
• 1/2 teaspoon ground cinnamon
• 1 cup buttermilk, at room temperature
• 1 cup cooked, mashed sweet potatoes, at room temperature
• 1/2 cup plus two tablespoons unsalted butter, melted, plus more for greasing the pan
• 2 large eggs, at room temperature
• 1/2 teaspoon vanilla extract
• 2 tablespoon unsalted butter
• 2 tablespoon maple syrup