01 - Preheat oven to 350°F. Line two baking sheets with parchment paper.
02 - In a medium mixing bowl, whisk together flour, baking soda, cinnamon, and salt until well-blended. Set aside.
03 - In a large bowl, beat softened butter, granulated sugar, and light brown sugar together until mixture is light and fluffy, about 2 to 3 minutes.
04 - Beat in eggs one at a time, ensuring each is fully incorporated. Mix in vanilla extract.
05 - Gradually add the dry ingredients to the wet mixture, mixing gently until just combined. Do not overmix.
06 - Stir in rolled oats, dried cranberries, and white chocolate chips evenly throughout the dough.
07 - Drop rounded tablespoonfuls of dough onto parchment-lined baking sheets, spacing each about 2 inches apart.
08 - Bake in the preheated oven for 10 to 12 minutes, until edges are golden and centers appear just set.
09 - Allow cookies to cool on baking sheets for 5 minutes, then transfer to a wire rack to cool completely.