Make It
Step 1
Preheat oven to 350° F. Spray 15 x 10-inch jelly roll pan with nonstick cooking spray; line with parchment paper.
Step 2
Beat eggs in medium mixer bowl on medium speed until creamy and thick. Add granulated sugar one tablespoon at a time. Continue beating for about 5 to 7 minutes. Mixture should be thick and creamy. Add vanilla extract, grated orange peel and salt. Beat for 10 seconds.
Step 3
Sift flour into the egg mixture, carefully folding in with a spatula. Pour into prepared jelly roll pan; spread evenly with a spatula.
Step 4
Bake for 12 to 15 minutes or until cake springs back when pressed. Remove from oven; let rest for 5 minutes.
Step 5
Lay out a clean kitchen towel that’s larger than the jelly roll pan; sprinkle with 2 tablespoons powdered sugar. Flip cake onto towel, gently peel off parchment paper and roll cake in towel starting from short side. Set aside; cool completely for 2 hours.
Step 6
Unroll cake; cut off rough borders with a sharp serrated knife.
Step 7
Warm dulce de leche in a small saucepan over medium-low heat, stirring constantly, for about 3 minutes or until a thick pourable consistency has been reached.
Step 8
Pour dulce de leche over cake, spread evenly with a spatula. Roll cake without towel and transfer to a small platter or large serving plate. Refrigerate for 1 hour.
Step 9
Sprinkle with remaining 2 tablespoons powdered sugar. Slice with sharp serrated knife or unflavored dental floss and serve with berries.