Fresh Peach Cake

INGREDIENTS

• 1 teaspoon pure vanilla extract
• 1 teaspoon baking powder
• 1 1/2 cups sugar, divided
• 1/2 teaspoon kosher salt
• 1 teaspoon ground cinnamon
• 3 large, ripe peaches, peeled, pitted, and sliced
• 1 teaspoon baking soda
• 1 cup sour cream, at room temperature
• 1/4 pound (1 stick) unsalted butter, at room temperature
• 1/2 cup chopped pecans
• 2 cups all-purpose flour
• 2 extra-large eggs, at room temperature