Learn everything you need to know about making caramel as Martha demystifies the secret to this one ingredient wonder with four irresistible recipes, including a decadent six-layer chocolate cake filled with salted caramel and covered with swirls of chocolate frosting. Learn the technique for making dulce de leche, a creamy caramel confection used to fill shortbread cookies, known as alfajores, and a buttery pound cake with a caramel glaze with Matt Lewis from Baked. Plus, the best chocolate-caramel bar cookies.