Preheat oven to 350F. Line two large baking sheets with parchment paper.
In a medium size bowl, mix together flour and baking soda.
In a large bowl, add melted butter, granulated sugar and brown sugar. Beat with an electric mixer until smooth.
Add eggs and vanilla. Beat on medium until the batter is smooth.
Add half of the flour mixture to the batter. Turn electric mixer to low and mix until the flour mixture starts to incorporate into the batter. As the flour mixture starts to incorporate, you can increase the speed of the electric mixer to medium. Use a spatula to scrape down the sides of the bowl as necessary.
Repeat with remaining flour mixture.
Add dark chocolate chips and cranberries.
Use a spatula to fold in chocolate chips and cranberries.
Use a cookie scoop or large spoon to drop dough onto prepared baking sheets. (About 2 tablespoons of dough per cookie).
Bake 10-12 minutes or until the cookies start to turn golden. Cool cookies slightly before transferring to a wire rack to cool completely. Makes 24 cookies.