SOUTHERN UPSIDE-DOWN PECAN CAKE

INGREDIENTS  1x2x3x 2 1/4 cups all-purpose flour 1 teaspoon baking soda 1/2 teaspoon salt 1 cup unsalted butter, softened to room temperature 3/4 cup granulated sugar 1 cup brown sugar 2 large eggs, at room temperature 1 1/2 teaspoons vanilla extract 1/2 cup sour cream 1 cup whole milk Topping ingredients…