Instructions: Make chocolate and white tuile batters according to following recipes. Heat oven to 400 degrees. Trace a leaf onto a large, flexible, plastic lid, such as one from a coffee can. Using scissors, cut lip from lid. With a utility knife, cut out the leaf shape to make a stencil.

Place nonstick baking mat on top of a baking sheet, and place stencil on mat. Using a small offset spatula, spread a thin layer of chocolate batter over stencil; carefully lift up stencil. Repeat, making more leaves, spacing evenly on baking mat. Transfer 1/2 cup white batter into a pastry bag fitted with an #2 tip. Pipe white veins onto chocolate leaves. Bake 4 minutes. Using spatula, drape leaves over rolling pin to cool. Repeat process to make 50 cookies, reserving 1/2 cup of chocolate batter. Repeat step with white batter, using reserved chocolate batter for piping.

CHOCOLATE TUILE BATTER: Sift flour with cocoa, and set aside. In bowl of an electric standing mixer with paddle attachment, beat butter and sugar on medium, until well combined, about 2 minutes. Beat in egg whites, one at a time, beating for 4 minutes after each addition. Add the flour-and-cocoa mixture, and mix until just combined. Reserve 1/2 cup batter; place in a pastry bag fitted with an #2 tip, and set aside for piping white tuile cookies.

WHITE TUILE BATTER: Sift flour into a mixing bowl, and set aside. In bowl of an electric standing mixer with paddle attachment, beat butter and sugar on medium, until well combined, about 2 minutes. Beat in egg whites, one at a time, beating for 4 minutes after each addition. Add the reserved flour, and mix until just combined. Reserve 1/2 cup batter; place in a pastry bag fitted with an #2 tip, and set aside for piping chocolate tuile cookies.

This recipe yields about 100 cookies.

Comments: The basic tuile dough of sugar, nuts, eggs, flour, and butter can be enhanced by flavorings such as chocolate, vanilla, lemon or orange.

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