Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.

In a large bowl, cream together the softened butter and sugar until light and fluffy.

Beat in the eggs one at a time, followed by the vanilla extract.

In another bowl, whisk together the flour, baking powder, and salt. Gradually combine this mixture with the wet ingredients.

Add green food coloring drop by drop until the desired color is achieved.

Drop rounded tablespoons of dough onto the prepared baking sheet about two inches apart.

Bake for 10-12 minutes or until lightly golden around the edges. Allow to cool before serving.