Ingredients:

  • 1 box (15.25 oz) white or yellow cake mix
  • 1 cup water
  • 1/2 cup vegetable oil
  • 3 large eggs
  • 1 package (3 oz) flavored gelatin
  • 1 cup boiling water
  • 1 cup cold water
  • 2 cups heavy whipping cream, chilled
  • 1/2 cup powdered sugar
  • 1 tsp vanilla extract
  • 1 pinch salt

Instructions:

  1. Preheat your oven according to the cake mix instructions (usually 350°F / 180°C).
  2. Combine the cake mix, water, oil, and eggs in a bowl, beating until smooth.
  3. Pour the batter into a 23x33 cm (9x13 inch) baking pan.
  4. Bake 30 mins until the top is golden brown and a skewer comes out clean.
  5. Let the cake cool for 10 mins. Note: Too hot and the Jello might break down; too cold and it won't soak in.
  6. Use the handle of a wooden spoon to poke holes every 1.25 cm (1/2 inch) across the cake. Note: Don't go all the way to the bottom or the liquid will leak.
  7. Dissolve the gelatin in 1 cup of boiling water, then stir in the cold water.
  8. Pour the liquid slowly over the warm cake, making sure every hole is filled.
  9. Refrigerate for 2-3 hours until the gelatin feels firm to the touch.
  10. In a chilled bowl, combine the heavy cream, powdered sugar, vanilla, and salt.
  11. Beat on medium speed until soft peaks form, then crank it to high until stiff peaks stand straight up.
  12. Spread the whipped cream over the chilled cake using a spatula for a smooth finish.