Butterscotch Pie

Directions

1. 1
   In a heavy saucepan, combine brown sugar, 2 tablespoons butter and water; cook over medium heat to boiling.
2. 2
   Reduce heat and cook gently until caramel is dark and syrup-like.
3. 3
   Remove from heat and set aside.
4. 4
   Melt remaining 2 tablespoons butter in saucepan over medium heat.
5. 5
   Remove from heat; whisk in flour until smooth.
6. 6
   Return to heat and cook, stirring constantly.
7. 7
   Pour in milk and heat to boiling.