Chocolate Raspberry Trifle

Yield: 8 servings

Chocolate Custard
3 tablespoons cornstarch
1 tablespoon granulated sugar
1/8 teaspoon salt
2 cups milk
3 large egg yolks
2 cups (11.5 ounce package) milk chocolate chips, divided

Trifle
1 cup heavy whipping cream
1 tablespoon granulated sugar
1 (10 3/4 ounce) frozen pound cake, thawed
2 tablespoons cr