Pre-heat your oven to 350.
In a mixing bowl, cream the butter and sugar together.
Add in the egg, vanilla, and almond and mix well. Mix in the green food coloring. Use gel, not liquid, and add about 1/2 teaspoon to get a nice green.
In a separate bowl, mix together the flour and baking powder.
Add in half the flour mixture to the wet mixture and mix.
Add in the second half of the flour mixture, and mix. The mixture will be dry, but keep mixing and kneading until it's a soft, pliable consistency (like play dough).
Sprinkle flour on a flat surface, and on top of your ball of dough, and roll it until it's about 1/4" - 1/3" thick.
Cut your cookies out using a shamrock cookie cutter and place them about 1/2" away from each other on the baking sheet. I used small 2" cookie cutter.
Sprinkle the St. Patrick's Day sprinkles on top of the cookies, and gently press the sprinkles into the tops of the cookies, being careful not smash the cookies themselves.
Bake at 350 for 8-9 minutes.
Remove from the oven and let them cook for 5 minutes before transferring to a cooling rack.
Should make about 32 cookies.