Preparation Steps

• In a small bowl, zest all citrus fruits. Reserve about 2 teaspoons of zest to mix with 1/2 cup of sugar, then set aside. Mix the remaining zest into the sugar and set aside.
• In a mixing bowl, combine softened butter and 1 cup of sugar. Beat until creamy. Add the egg and mix well. Gradually add flour, baking powder, and baking soda, mixing until just combined. Stir in the citrus zest mixture.
• Preheat oven to 350°F. Line baking sheets with parchment paper. Roll cookie dough into 3/4 to 1-inch balls. Roll each ball in the remaining sugar and zest mixture, coating generously.
• Place balls on prepared baking sheets. Slightly flatten each with the bottom of a glass. Optional: sprinkle additional sugar on top.
• Bake for 10-12 minutes or until edges are golden. Remove from oven and let cool on wire racks. Store in a covered container for up to a week.