Easy St. Patrick’s Day Cupcakes From Cake Mix

If you want to start planning a celebration for St. Patrick’s Day but are short on time, try making super easy St. Patrick’s Day Cupcakes from a box cake mix. Light and fluffy, fun green color, topped with creamy green buttercream and cute sprinkles.


Units Scale

For Green Buttercream Frosting:

  • 2 stickers of room temperature butter (1 cup)
  • 4 cups of powdered sugar
  • 5 to 6 tablespoons of milk
  • 1 teaspoon of vanilla
  • 2 drops of green food coloring.
  • Sprinkles



  1. Add the cupcake liners to the cupcake baking pan. Lightly spray the inside of the liner. 
  2. Preheat oven to 350° F.
  3. Melt the butter in a glass measuring cup. Make sure it is not too hot.
  4. In a stand mixer or in a large bowl with a hand mixer add the cake mix to the bowl.
  5. Add the water, eggs, and melted butter. 
  6. Mix on low for 30 seconds.
  7. Mix on medium for 2 minutes.
  8. Fill the cupcake liners 2/3 full. Do not overfill
  9. Bake in a 350° F oven for 16 minutes. (check by putting a toothpick in a cupcake, if it comes out clean take it out of the oven. 
  10. Allow cooling in the pan for 5 minutes.
  11. Remove the cupcakes and put them on a cooling rack. 
  12. When the cupcakes are cool make the frosting and frost. 

To Make the Frosting: 

  1. Mix the softened butter in the mixer on low until the butter is creamy.  
  2. Add the vanilla.
  3. Slowly add the powdered sugar and the milk alternatively.  
  4. Remove 1 and 1/2 cups of the white frosting to pipe the border.
  5. Add the 6 drops of green food coloring to make the green color.
  6. Adjust the amount of milk and sugar to get the consistency you want for your cake.  You want the frosting to be stiff enough to pip but not so stiff that you can not spread. 

Decorating the Cupcakes: 

  1. Put the flower tip in a piping bag and fill it with green frosting. Pipe the flower design with a continuous sweeping motion. 
  2. Add as many sprinkles to the top of the cupcake. 
  3. Insert any cupcake toppers for St. Patrick’s Day.

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