Preheat oven to 400 degrees. Prepare 12 cup muffin pan by lightly greasing bottoms only.
Stir dry ingredients together in large bowl. Stir in chips & cranberries. Beat wet ingredients in mixer. Make a well in bowl with dry ingredients and pour wet ingredients in well. Stir just until moistened. Spoon batter about 2/3 full in each muffin cup. Bake for 20-25 minutes until done. Immediately turn out onto cooling racks to cool.
Melt 1/2 cup chocolate chips with 1 Tbsp shortening in microwave and drizzle over tops of muffins.
Yield: 12 muffins