Mocha Nut Roll

• 4 large eggs, room temperature,
• 1/3 cup plus 1/2 cup sugar
• 1/2 teaspoon vanilla extract
• 1/2 cup all-purpose flour
• 1 teaspoon baking powder
• 1/4 teaspoon salt
• 1/4 cup finely chopped walnuts
• 1/2 cup sugar
• 3 tablespoons all-purpose flour
• 2 teaspoons instant coffee granules
• 1/4 teaspoon salt
• 1-1/4 cups whole milk
• 1 ounce unsweetened chocolate, chopped
• 1 large egg, lightly beaten
• 1 tablespoon butter
• 1 teaspoon vanilla extract
• Confectioners' sugar and chocolate curls, optional

1. Line a greased 15x10x1-in. baking pan with waxed paper; grease the paper and set aside.
2. In a large bowl, beat egg yolks on high speed for 5 minutes or until thick and lemon-colored. Gradually beat in 1/3 cup sugar. Beat in vanilla. Combine the flour, baking powder and salt; gradually add to yolk mixture and mix well (batter will be very thick). Stir in walnuts.
3. In a small bowl with clean beaters, beat egg whites on medium speed until soft peaks form. Gradually beat in remaining sugar 1 tablespoon at a time, on high until stiff peaks form. Gradually fold into batter. Spread evenly into prepared pan.
4. Bake at 375u0b0 until cake springs back when lightly touched, 10-15 minutes. Cool in pan for 5 minutes. Invert onto a kitchen towel dusted with confectioners' sugar. Gently peel off waxed paper. Roll up cake in the towel jelly-roll style, starting with a short side. Cool completely on a wire rack.
5. Meanwhile, in a small saucepan, combine the sugar, flour, coffee granules, and salt. Stir in milk and chocolate. Bring to a boil. Cook and stir for 2 minutes.
6. Remove from the heat. Stir a small amount of hot mixture into egg; return all to pan, stirring constantly. Bring to a gentle boil. Cook and stir until mixture reaches 160u0b0, 2-3 minutes. Remove from heat; gently stir in butter and vanilla. Cool to room temperature.
7. Unroll cake; spread filling evenly over cake to within 1/2 in. of edges. Roll up again. Place seam side down on a serving platter. If desired, just before serving, sprinkle with confectioners' sugar and garnish with chocolate curls.

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Taken from www.tasteofhome.com/recipes/mocha-nut-roll/ (may not work)