Preheat your oven to 350°F (175°C) and line baking sheets with parchment paper.
In a bowl, whisk together flour, cocoa powder, baking soda, and salt.
In another bowl, beat the butter, granulated sugar, and brown sugar until light and fluffy. Mix in the egg, vanilla, and red food coloring.
Gradually add the dry ingredients until just combined.
Drop rounded tablespoons of dough onto the prepared baking sheets, spacing them 2 inches apart.
Bake for 8–10 minutes, or until the edges are set. Let cookies cool completely on a wire rack.
Beat cream cheese and butter until smooth. Gradually mix in powdered sugar and vanilla until creamy.
Spread or pipe the frosting onto the cooled cookies.
Store in an airtight container in the fridge for up to 4 days.