Halloween Double Decker Fudge (Easy, no stove required)

Halloween Double Decker Fudge (Easy, no stove required)

2 cups (12 oz) semi-sweet chocolate chips (or any other chocolate you want to use)
1 can (14 oz) sweetened condensed milk (divided)
8 oz or 1 1/3 cups of white chocolate or white candy melting wafers
1/4 tsp orange extract (optional) or any other extract you want to use to flavour this layer.
Orange paste food colour (optional) or a couple drops of red and yellow liquid food colour (to get desired shade of orange)