Step 1

Beat butter, oil, sugar, powdered sugar, and egg together until creamy.

Step 2

Mix in lemon zest, lemon juice, and lemon extract.

Step 3

Mix in cornstarch, baking soda, salt, and flour.

Step 4

Cover and refrigerate for 1 hour. The dough will be soft.

Step 5

Preheat oven to 350 degrees.

Step 6

Use a SMALL cookie scoop (1 Tbsp. size) or roll dough into 1" balls. Place cookie dough balls on a parchment paper-lined baking sheet.Keep the bowl of cookie dough in the refrigerator in between filling cookie sheets.

Step 7

Bake for 12 minutes, or until the edges are light brown.

Step 8

Allow cookies to cool on the baking sheet for 2 minutes.

Step 9

Fill a small bowl with powdered sugar.

Step 10

One by one, take cookies off of the baking sheet and toss in powdered sugar, covering both sides.

Step 11

Place cookies on a wire rack and cool for 5-10 minutes then toss in powdered sugar AGAIN.

Step 12

Place cookies back on wire rack. Let cookies cool completely.