Cream together softened butter and sugar. Add the extracts and egg. Mix until the egg is thoroughly incorporated. In a separate bowl, combine your flour, baking powder, baking soda and salt, then add that to the wet mixture in 2 or 3 small batches. When the dough begins to form around the paddle attachment and or your spoon/spatula it is ready. It should not be sticky. Separate the dough into 4 equal portions and place each portion into a bowl. Cover each bowl with plastic wrap and allow the dough to rest in the refrigerator for 20 minutes before you begin the next step.
Place a drop of the food coloring into each appropriate bowl. Dark Green in one, Aqua Green in the next, Medium Green then light green. If you do not have 4 different green colorings then just use blue and green to form the aqua color and yellow to form the medium/yellowish green color and barely any green coloring to form the light green (use just a tad).
Wearing plastic gloves mix each color into its appropriate ball of dough until thoroughly combined. Cover each bowl with plastic wrap and again refrigerate for 30 minutes.
Now when you are ready, roll about 1 tsp of dough from each bowl into a small ball shape and place into 2 rows to form a square. Pinch the dough balls together to form a log. Roll dough into a rope, about 10-12 inches long. Coil the rope into a spiral shape slightly twisting it as you wind it around the center. Repeat for the remainder of the dough. Bake at 400 for 7-8 minutes.
Recipe by Kitchen Belleicious at https://kitchenbelleicious.com/2015/03/03/tie-dyed-swirls-st-patricks-day-cookies/