Pre-heat oven to 350 degrees.
In a medium-size bowl, beat butter and sugar with mixer then add egg and vanilla. Mix until fluffy.
Add flour, baking powder, and salt into wet mixture.
Mix until dry ingredients are incorporated.
Take dough and roll into a ball and place on floured counter top.
Take a rolling pin and roll out until it’s about ¼ inch thick. If it’s sticking to the rolling pin, add a little flour to the top of dough.
Cut out circles then cut out the shamrock shape in the middle. Place on a parchment lined cookie sheet.
Take Jolly Ranchers and place in a baggie, hit with a heavy object to break it up into little pieces.
Place the jolly rancher pieces inside the shamrock.
10. Place in oven and bake for 8-10 minutes. Take out before the edges turn golden brown.
10. Store in an airtight container. Makes about 2 dozen cookies.