Fudge Cheesecake Bars

Preheat the oven to 350 F. Place the baking chocolate and butter in a
large microwaveable bowl. Microwave on high for 2-2 1/2 mins, stirring
after each min, until chocolate and butter are completely melted.
Beat in 2 c sugar, 3 eggs, and the vanilla until blended. Stir in the
flour, then spread the batter into a greased 9″ x 13″ baking pan. On
a med-sized bowl, beat the cream cheese, the remaining 1/2 c sugar,
and the remaining egg. Remove the wrappers from 12 chocolate pieces;
coarsely chop, then stir into the cream cheese mixture. Drop by
dollops over the top of the chocolate batter. With a knife, swirl the
chocolate batter to the top to create a marbled effect. Bake for
35-40 mins or just until set. Cool completely in the pan on a wire
rack. Cut into bars. Remove the wrappers from the remaining chocolate
pieces and press them onto the tops of the bars. Cover and
refrigerate any leftover bars.

Note: The time required to melt the chocolate and butter will depend
on the wattage of your microwave. Check and stir mixture frequently,
just until melted.