3 brown sugar pecan cupcakes with caramel frosting Recipes

nonstick vegetable oil spray, all purpose flour, cake flour, baking powder, baking soda, fine sea salt, coarsely chopped toasted pecans, unsalted butter, room temperature, golden brown sugar, eggs, room temperature, sour cream, vanilla extract, sugar, water, heavy whipping cream, egg yolks, unsalted butter, room temperature, fine sea salt, powdered sugar , sifted, coarsely chopped toasted pecans

granulated sugar , plus, granulated sugar (divided use ), unbleached all-purpose flour, baking powder, salt, unsalted butter, at room temperature, eggs, pure vanilla extract, chopped toasted pecans (optional), unsalted butter, dark brown sugar, heavy cream , plus more as needed, sugar , spooned and leveled, pure vanilla extract