I found this great tutorial over at Kelli's cakes how to make cupcakes with a shamrock in the center when you cut them open! SOOOO Cute, so I thought I would give it a shot too. I didn't have a shamrock cookie cutter so I just used a flower cookie cutter. I made 1 batch of batter and dyed 1/2 green and 1/2 purple (I thought I would make some in a week or 2 with flower center for spring-I wrapped this one in syran wrap and tin foil and froze it).
Sorry for the terrible picture, Best one I could get. I made the frosting by adding white and green frosting to a piping bag (scraped white on one side of the bag and green on the other roughly) and then squeeze some frosting out until it starts to come out blended.