Begin by greasing and lining a 4" x 6" casserole dish.
Next place the the chocolate chips or almond bark in a microwave-safe bowl and heat in 30 second bursts in the microwave.
Stir well in between each 30 seconds until the chocolate is completely melted.
Working quickly, add the sweetened condensed milk (add as much or little as desired).
Fold the fudge mixture into the casserole dish and then immediately begin to make the caramel mixture.
Place the unwrapped caramel squares in a microwave-safe dish and add the heavy cream.
Heat in 25 second bursts, watching carefully so that the caramel doesn't boil over.
Then drizzle the melted caramel over the fudge, and use a knife to push the caramel ribbons throughout the fudge.
Add the caramel bits and pecan pieces to the top of the fudge and press firmly to set.
Once completely cooled and set cut the fudge into one inch squares.