Nectarine Pancakes

INGREDIENTS

• 1 3/4 cups all-purpose flour
• 3 1/2 tablespoons sugar
• 1 tablespoon baking powder
• 1/2 teaspoon coarse salt
• 1 1/2 cups low-fat buttermilk
• 2 large eggs, room temperature
• 1 teaspoon pure vanilla extract
• 1 tablespoon butter, melted, plus more, softened, for skillet and serving
• 2 tablespoons safflower oil
• 2 nectarines, peeled and thinly sliced (about 2 cups)
• Pure maple syrup, for serving