Prepare a pan with wax or parchment paper. Make sure that the paper overlaps the edges of the pan so you can easily remove it when it's cool.
Put into a medium-sized saucepan, the chocolate, sweetened condensed milk, extract and cherry syrup. On very low heat, stirring constantly, melt everything together.
Turn up the heat to low, and add the marshmallows, stirring all the while.
When no white streaks are left, add the cherries and stir to mix.
Pour into prepared pan.
Black Forest Fudge Setting
Let stand for 3 hours, then refrigerate.
When set, remove from pan using sided of parchment paper, peel paper from fudge, and cut into squares.
Notes
You can find cherry syrup in the coffee section of stores like Smart and Final, and dried cherries should be in the produce or dried fruit section of your supermarket.
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