Peanut Butter Fantasy Fudge

Combine 1 1/2 cups sugar, 6 tablespoons margarine, and 1/3 cup evaporated milk in a heavy 1 1/2-quart saucepan; bring to full rolling boil, stirring constantly. Continue boiling over medium heat, stirring constantly to prevent scorching, for 4 minutes.

Remove from heat; stir in chocolate pieces until melted. Add 1/2 jar of marshmallow creme and 1/2 teaspoon vanilla extract; beat until well blended. Pour into a greased 9x13-inch baking pan.

Repeat process with remaining ingredients, substituting peanut butter for chocolate pieces. Spread over chocolate layer.

Let cool at room temperature until set; cut into squares.