01 -
Heat oven to 350°F (175°C).
02 -
Line jelly roll pan with parchment paper.
03 -
Sift flour, cocoa, baking powder, and salt.
04 -
Whisk eggs and sugar until fluffy, then add oil and vanilla.
05 -
Fold in dry ingredients into the wet mixture.
06 -
Spread batter in pan, bake for 12 minutes.
07 -
Roll the hot cake in a cocoa-dusted towel and cool completely.
08 -
Whip heavy cream, powdered sugar, peppermint extract, and food coloring.
09 -
Unroll cake, spread filling evenly, and re-roll without the towel.
10 -
Chill the filled cake for 1 hour.
11 -
Heat cream and pour over chocolate chips, let sit for 5 minutes, then stir until smooth.
12 -
Pour ganache over chilled cake.
13 -
Garnish cake with extra chocolate chips and fresh mint leaves.