Preheat the oven to 350°F (175°C) and line a baking sheet with parchment paper.
In a bowl, whisk together the flour, cocoa powder, baking soda, and salt.
In a separate bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy.
Add the egg, red food coloring, and vanilla extract to the creamed mixture and mix until well combined.
Gradually add the dry mixture to the wet mixture, stirring until just combined.
Fold in the white chocolate chips.
Scoop tablespoon-sized balls of dough onto the prepared baking sheet, spacing them about 2 inches apart.
Bake for 10-12 minutes, until the edges are set and the centers look slightly underbaked.
Let the cookies cool on the baking sheet for 5 minutes before transferring to a wire rack.