Melt the butter over low heat in a saucepan. In a mixing bowl, combine the flour, baking powder, salt, and sugar. Add the eggs and the cooled melted butter, then mix until a soft, non-sticky dough forms. Wrap the dough in plastic wrap and refrigerate for 20 minutes.
⅔ cup butter, ½ cup sugar, 2 large eggs, 2 cups flour, 1 teaspoon baking powder, ⅓ teaspoon salt
Roll the chilled dough into a thin layer1/16 of an inch. Use cookie cutters to cut circles in three different sizes. Place the circles on a baking sheet lined with parchment paper or a silicone baking mat.
Preheat your oven to 350°F (180°C). Bake the cookies for 10-15 minutes, or until golden brown. Allow them to cool completely on a wire rack.
To prepare the frosting, beat the softened butter and powdered sugar with a mixer for 1-2 minutes until light and fluffy. Add the cream cheese and continue mixing until smooth. Add a few drops of green food coloring, mixing until evenly colored.
½ cup butter, ¾ cup powdered sugar, 8 ounces cream cheese
Spread frosting on the largest cookie and stack the medium-sized cookie on top. Add more frosting, then place the smallest cookie on top. Finish with a final layer of frosting and decorate with sprinkles or edible decorations. Serve and enjoy!