Lime Creams

Step 1
Place 1/3 cup of sugar, the lime juice, lime zest, and 1 egg in a saucepan over low heat, and whisk constantly until the mixture almost reaches a simmer and begins to thicken. Remove the mixture from the heat, and tint to your desired shade of green with food coloring. Set the filling aside to cool.

Step 2
Preheat oven to 325 degrees F (165 degrees C).

Step 3
In a bowl, cream the butter with 1/4 cup of sugar, then stir in 1 egg and vanilla extract. Mix in the flour and salt until the dough is smooth. Roll dough into 1-inch balls. Arrange on an ungreased baking sheet, placing the balls about 2 inches apart. Use your thumb to make an indentation in the center of each dough ball. Spoon about 3/4 teaspoon of the lime filling into each.

Step 4
Bake in the preheated oven until the cookies are set but not browned, 12 to 15 minutes. Allow cookies to cool on baking sheet for 1 minute before removing to finish cooling on wire racks. When cookies are cool, sprinkle lightly with confectioners' sugar.