Spray cookie sheet with nonstick cooking spray. Spread pecans on cookie sheet. Bake at 275 degrees for 10 minutes. In medium saucepan, combine all remaining ingredients, except vanilla; mix well. Bring to a boil. Cook 2 minutes, stirring occasionally. Remove saucepan from heat. Add vanilla and pecans; mix well. Spoon pecans onto foil or parchment paper. Separate with fork. Cool 30 minutes. Store in tightly covered container.