Bake cinnamon rolls as directed on package. Reserve icing. To caramelize pecans, melt butter in 10-inch skillet over medium heat; add pecans. Cook, stirring constantly, 2 to 3 minutes or until butter just starts to brown. Add brown sugar. Cook, stirring constantly, until the sugar melts and bubbles, about 2 minutes. Spoon over buns when they are hot out of the oven. Remove cover from icing; microwave on medium (50 percent power) 5 to 10 seconds or until thin enough to drizzle. Drizzle over warm buns. Serve warm.
Tip: Pecans can burn easily and need to be closely watched as they cook.