Deliciously Sweet Pie with a Crunchy Topping

Ingredients

• 1/2 cup butter, softened
• 3/4 cup packed brown sugar
• 1 teaspoon vanilla extract
• 1 egg
• 1 1/2 cups all-purpose flour
• 3/4 teaspoon baking powder
• 1/2 teaspoon baking soda
• 1/2 teaspoon salt
• 1/2 cup chopped walnuts
• 1/2 cup chopped pecans
• 1/2 cup semi-sweet chocolate chips
• 1/2 cup butterscotch chips
• 1/2 cup flaked coconut