1
: Heat 2 cups (500 mL) evaporated milk in a medium saucepan over medium heat.
2
: Combine sugar and cornstarch in a medium heat proof bowl. Whisk in remaining ½ cup (125 mL) evaporated milk. Beat in eggs. Slowly add hot milk to bowl. Stir to combine. Return mixture to saucepan. Bring to a boil, reduce heat and cook, stirring for 2 minutes or until thick. Stir in butter.
3
: Strain hot mixture into heat proof bowl. Stir in vanilla and berries. Cool for 5 minutes. Spread mixture into pie shell. Place plastic wrap directly on surface of filling to prevent a skin from forming. Chill. Top with berries before serving.