Heat oven to 350 degrees. Grease bottom and sides of an 8 inch square pan with shortening.
To a saucepan, melt butter over low heat; remove from heat. Stir in brown sugar, milk, vanilla, and egg until well mixed. Stir in flour, baking powder, and salt.
Stir in 1/2 cup of pecans and 1/2 cup butterscotch chips. Spread in pan.
Bake about 25 to 30 minutes or until golden brown. Cool in pan, about 5 minutes.
In a sauce pan, heat cream over low heat until boiling. Remove from heat, stir in 2/3 butterscotch chips until melted. Let rest for 15 minutes or until desired drizzling consistency is reached.
Drizzle over brownies; sprinkle with chopped pecans. Cut into 4 rows by 4 rows.
