• Preheat your oven to 350°
• Grease a 10”x15” jelly roll pan or rimmed baking sheet with butter or your favorite non-stick spray and line the base with parchment paper 

Make the sponge…

• Sift 1/2 cup of all purpose flour, 1/4 cup of natural unsweetened cocoa powder, 1/2 teaspoon of baking powder and a pinch of salt into a bowl, discard any hard bits and set aside for now
• Combine 4 large eggs and 2/3 cup of granulated sugar in a large bowl and beat with an electric hand mixer until thick, frothy and a pale yellow color 
• Add a teaspoon of pure vanilla extract and 3 tablespoons of olive oil and beat until completely incorporated 
• Add the sifted dry ingredients and gently fold into the whipped egg mixture until fully combined 
• Spread the batter evenly over the greased and lined pan
• Bake in a 350° oven for 10 minutes 
• While the sponge is baking, lay a thin kitchen towel on your counter and dust generously with confectioners sugar 
• When the cake is baked, carefully invert it onto the towel and discard the parchment paper 
• Roll the sponge up tightly in the towel starting at the short end and place onto a cooling rack until it cools to room temperature 

Make the whipped chocolate ganache filling…

• Warm 3/4 cup of heavy cream until steaming either over medium heat or in the microwave 
• Place 8 ounces of roughly chopped chocolate in a large bowl and pour the hot heavy cream over 
• Leave undisturbed for 5 minutes 
• Stir the chocolate and cream until smooth and shiny 
• Set the mixture aside to cool for about 30 minutes (stir the mixture every 10 minutes to keep it smooth)
• After the mixture has cooled, whip with an electric hand mixer until thick and fluffy
• Optionally, add 1/2 cup of confectioners sugar if a sweeter filling is desired 

Assemble the swiss roll…

• Once the sponge is fully cooled, carefully unroll it and transfer it from the towel onto a sheet of plastic wrap
• Spread the chocolate cream filling evenly over the sponge leaving a small boarder around the edges 
• Re-roll the sponge and wrap tightly in plastic wrap
• Chill until fully chilled and set 

Garnish and serve…

• Once the roll is fully set, unwrap and discard the plastic wrap 
• Garnish with a dusting of confectioners sugar and/or cocoa powder, slice into 1 inch slices and enjoy!