Big Orange Fudge

Orange Marbled Fudge

1 1/2 tsp. + 3/4 cup butter (no substitutes), divided
3 cups sugar
3/4 cup whipping cream
1 pkg. (10-12 oz.) vanilla or white chips
1 jar (7 oz.) marshmallow cream
3 tsp. orange extract
12 drops yellow food coloring
5 drops red food coloring

Grease a 13 in. x 9 in. x 2 in. pan with 1 1/2 tsp. butter. In a heavy saucepan, combine the sugar, cream and remaining butter. Cook and stir over low heat until sugar is dissolved. Bring to a boil; cook and stir for 4 minutes. Remove from the heat; stir in chips and marshmallow cream until smooth.
Remove 1 cup and set aside. Add orange extract and food colorings to remaining mixture; stir until well blended. Pour into prepared pan. Drop the reserved marshmallow mixture by tablespoonfuls over top; cut through mixture with a knife to swirl. Cover and refrigerate until set. Cut into squares.