Jalapeno Burgers with Gorgonzola Recipe

In a small skillet, heat oil and butter over medium heat. Add onion, salt and sugar; cook and stir 3-4 minutes or until onion is softened. Reduce heat to medium-low; cook 4-6 minutes or until deep golden brown, stirring occasionally. In a large bowl, mix jelly, salt and pepper. Add beef; mix lightly but thoroughly. Shape into four 1/2-in. thick patties. Grill burgers, covered, over medium heat or broil 4 in. from heat 4-5 minutes on each side or until a thermometer reads 160 °. Serve on buns with caramelized onion, cheese and, if desired, sliced jalapeno.