Turtle Cookie Bars

1. **Preheat oven**: Preheat to 350°F (175°C).

2. **Make the crust**: Combine the flour, 1 cup brown sugar, and 1/2 cup softened butter in a mixing bowl. Beat at medium speed with an electric mixer until blended. Pat the mixture firmly into an ungreased 13x9 inch pan.

3. **Add pecans**: Arrange the pecans evenly over the crust.

4. **Prepare caramel layer**: In a saucepan, combine 2/3 cup butter and 1/2 cup brown sugar. Bring to a boil over medium-high heat, stirring constantly. Cook for 3 minutes, continuing to stir constantly. Pour the mixture over the pecans.

5. **Bake**: Bake at 350°F for 15-17 minutes or until golden and bubbly.

6. **Add chocolate**: Remove from the oven and sprinkle with chocolate morsels. Let stand for 2-3 minutes or until slightly melted. Gently swirl the chocolate with a knife, leaving some morsels whole (do not spread).

7. **Cool and serve**: Let cool on a wire rack at room temperature until the chocolate is set. Cut into squares and serve.