Combine your marshmallow creme, sugar, evaporated milk, butter and sat in a large sauce pan over medium heat.

Bring to a boil stirring regularly. Once boiling, set a timer for 5 minutes and stir constantly. Remove from heat.

In 2 large bowls, fill 1 bowl with chocolate chips and 1 tsp vanilla and 1 bowl with white chocolate and 1/2 tsp vanilla.

Separate 1 cup of mixture and add it to the white chocolate chips.

Pour the rest of the mixture over the chocolate chips. Stir until mixture is smooth.

Pour chocolate fudge into a 2.2 qt (or 2 qt) baking dish.

Stir your white chocolate fudge until smooth.

Pour your white chocolate fudge over your chocolate fudge.

Swirl with a knife in a decorative pattern.

Place in fridge and chill for 2 hours.