Layered Mint Fudge

1 1/2 tsp butter, softened
2 c (12oz) semisweet chocolate chips
1 can (14oz) sweetened condensed milk, divided
2tsp vanilla extract
1c vanilla or white chocolate chips
3tsp peppermint extract
1 to 2 drops green or red food coloring

Line a 9" square pan (I used a 9" round pan) with foil; grease the foil with butter and set aside.
In a heavy sauce pan, melt chocolate chips and 1c milk over low heat.
Cook for 5-6 min. or until smooth.
Remove from heat.
Add vanilla; stir for 3-4 min. or until creamy.
Spread half of the mixture into prepared pan.
Refrigerate for 10min or until firm.
Set remaining chocolate mixture aside.

In heavy saucepan, melt vanilla chips and remaining milk over low heat; cook and stir for 5-6 min. or until smooth (mixture will be thick).
Remove from the heat.Add peppermint extract and food coloring.
Stir 3-4min or until creamy.Spread evenly over chocolate layers.Refrigerate for 10min or until firm.
Heat reserved chocolate mixture over low heat until mixture achieves spreading consistency; spread over mint layer.
Cover; refrigerate overnight or until firm.
Using foil, lift fudge out of pan.Gently peel off foil; cut into 1" squares.
Store in the fridge.
Makes about 1 3/4lbs.