Place 50 g of softened butter into a mixer bowl and start whipping until nice and fluffy.
Add 50 g powdered sugar and continue to mix until fully incorporated.
Add 30 g of room temperature egg whites, alternate with 60 g of sifted flour.
Continue until well combined.
Transfer the mixture into a piping bag and start piping 4-inch sticks long on a baking tray lined with parchment paper.
Bake in a preheated oven at 375° for 8 to 10 minutes or until they are lightly golden on the top.
Once ready, we can finish them in multiple ways, dipped in melted dark chocolate, or when still warm, you can place them on a rolling pin to get curved and then fill them with pastry cream.
Notes
How to store lingue di gatto:
You can store lingue di gatto in an airtight container for up to a week or freeze it for up to 2 months.