Preheat oven to 350.
Line a muffin pan with paper liners.
Beat egg and then add remaining wet ingredients and whisk until blended.
In a separate bowl whisk together all the dry ingredients.
Add wet ingedients to the dry stir until combined.
Now add food coloring until you reach the desired color.
Fill cupcake liners about 2/3 full.
Bake about 20 minutes or until toothpick inserted in middle comes out clean.
Allow to cool on wire rack.
Cream together cream cheese, butter and Baileys.
Gradually add in powdered sugar and whip until desired consistency is reached.
Transfer to zippered bag or piping bag and pipe frosting onto cupcakes.