So here is the 3rd recipe I promised and its yummy but sweet, you can use a mold but I would slice the lamb and arrange on a platter with caramel apple garnish.
Lamb with Caramel Apple in Butterscotch Sauce
Roast lamb, cool and slice
Make caramel with butter and sugar, add apples in the pan
Reduce heat until it thickens and put ¾ into mold
Make butterscotch with remaining ¼ of caramel,
Add cream and touch of vanilla
Arrange on plate