Crust:
2 cups all-purpose flour
1 cup firmly packed brown sugar
1/2 cup butter, softened
2nd Layer
1 cup pecan halves or chopped pecans
2/3 cup butter
1/2 cup firmly packed brown sugar
1 cup milk chocolate morsels
Preheat oven to 350 degrees. Combine first 3 ingredients in a mixing bowl; beat at medium speed with an electric mixer until blended. Pat mixture firmly into an ungreased 13x9 inch pan.
Arrange pecans over crust.
Combine 2/3 cup butter and 1/2 cup brown sugar in a saucepan; bring to a boil over medium high heat, stirring constantly. Cook 3 minutes, stirring constantly. Pour mixture over pecans. Bake at 350 degrees for 15-17 minutes or until golden and bubbly.
Remove from oven; sprinkle with chocolate morsels. Let stand 2-3 minutes or until slightly melted. Gently swirl chocolate with a knife, leaving some morsels whole (do not spread). Let cool on a wire rack at room temperature until chocolate is set. Cut into squares.