Ingredients for - Cat's Tongue Cookies (Langues de Chat)

1. 1/4 c. (50 g.) granulated sugar
2. 1 tsp. finely grated orange zest
3. 1/4 tsp. ground lavender (optional)
4. 1/4 tsp. kosher salt
5. 1/2 c. (1 stick) unsalted butter, softened
6. 1/3 c. (40 g.) powdered sugar
7. 2 large egg whites
8. 1 tsp. pure vanilla extract
9. 3/4 c. (90 g.) all-purpose flour
10. 1/2 c. dark chocolate chips (optional)

How to cook deliciously - Cat's Tongue Cookies (Langues de Chat)

1 . Stage

In a large bowl, rub granulated sugar, orange zest, lavender, if using, and salt until sugar is damp. Add butter and powdered sugar. Using an electric mixer on medium-high speed, beat until light and fluffy. Beat in egg whites and vanilla, then fold in flour until just combined.

2 . Stage

Preheat oven to 350°. Line 2 baking sheets with parchment. Transfer batter to a piping bag fitted with a 1/2" round tip. Pipe batter into thin 3 1/2"-long strips on prepared sheets, spacing 2" apart. Refrigerate until chilled while oven preheats, about 10 minutes.

3 . Stage

Bake cookies until edges are golden and tops are set, 12 to 14 minutes. Let cool completely on sheets. 

4 . Stage

In a small heatproof bowl, microwave chips, if using, in 20-second increments, stirring in between, until melted and smooth. Dip one-half of cookies into chocolate, then return to baking sheets and let set.

5 . Stage

Make Ahead: Cookies can be made 3 days ahead. Store in an airtight container at room temperature.