In mixing bowl, cream brown sugar and butter until smooth. Blend in milk, vanilla and egg. Stir flour, soda and aslt togehter. Add flour mix together to creamed mix; blend to make a smooth dough. Add pecans. Spoon by rounded spoonfuls onto lightly greased cookie sheets. Bake at 190ºC for 10-12 minutes or until lightly golden. Remove from cookie sheets immediately. Cool on racks.
VARIATIONS: Chocolate-Pecan Butter Cookies: Add 1 cup min chocolate chips to dough along with the pecans. Coconut Butter Cookies: Add 2 cups flaked coconut instead of the pecans.