1 whole boneless chicken breast with skin (about 1 pound), halved
2 sticks of Saga Blue (each 2 by 1/2 by 1/2-inch)
2 thin slices of cooked ham (each 4 by 4 inches)
1 tablespoon Worcestershire sauce
1 tablespoon fresh lemon juice
2 tablespoons unsalted butter, cut into pieces