Coconut Cream Pie

Ingredients

• 1 ts Vanilla extract
• 2 c milk
• 2 c Frozen whipped topping;
• 1/4 c All-purpose flour
• 1 Egg yolk
• 1/3 c Sugar
• ; crust
• One 9-inch prepared graham
• 1/4 ts Salt
• 1 tb Butter
• 1 1/2 c Sweetened flaked coconut