Either in the microwave or using a double boiler melt together the condensed milk and chocolate chips. Stir until the chocolate chips are fully melted and the mixture is smooth.
Stir in almonds, cranberries & marshmallows.
Pour mixture into a brownie tin lined with baking paper.
Put in the fridge until set (a couple of hours) remove ad cut into pieces.
Fudge can be stored in the fridge or at room temperature in an airtight container.