Popping Up Happy Birthday Cake

Prep Time: 45 Minutes
Total Time: 3 Hours
Servings: 16

This fun cake takes inspiration from your classic cinema snack. Sweet and salty come together here in a unique and appealing dessert that will have both old and young coming back for more!


All You Need Is ...

  • Small check mark in a circle icon 1/3 cup (80ml) vegetable oil, plus extra for greasing
  • Small check mark in a circle icon 1 box Betty Crocker™ Super Moist™ Devil’s Food Cake Mix
  • Small check mark in a circle icon 3/4 cup (180ml) water
  • Small check mark in a circle icon 3 extra large eggs
For the decoration
  • Small check mark in a circle icon 2 tubs Betty Crocker™ Creamy Deluxe™ Vanilla Frosting
  • Small check mark in a circle icon 50g strawberry bootlaces (see tip),cut into long thin strips
  • Small check mark in a circle icon 15g white chocolate, unbroken
  • Small check mark in a circle icon 1 blue writing icing tube
  • Small check mark in a circle icon 30g sweet and salty popcorn

Betty's Easy Steps

  1. Preheat the oven to 180°C (160°C fan forced). Grease and line a 20cm round cake pan and a 28cm x 18cm rectangular baking pan or heatproof glass baking dish with baking paper.
  2. Open the cake box, remove enclosed frosting sachet and reserve for another use. Make up the cake mix as directed on the box, adding the oil, water and eggs.
  3. Pour 550g of the cake mix into the rectangular pan or baking dish and the remaining cake mix (about 350g) into the round pan. Level the surface and bake the cakes for 30 minutes, or until a skewer inserted into the middle of both comes out clean. Leave to cool on wire racks in the cake pans for 10 minutes, then remove from the pans, peel off the baking paper and place onto the wire racks to cool completely.
  4. Cut the round cake in half vertically to create 2 half circles. Trim the rounded tops of each cake to make them level, if necessary. Spread 2 tablespoons of the frosting onto one of the semi-circle cakes and top with the other one to create a double height semi-circle of cake.
  5. Trim the rectangular cake so that it is 8cm wide at one end and 18cm wide at the other end. On a large board, place the larger cake piece with the 8cm end at one end of the board. Place the stacked rounded cake at the 18cm end of the other cake. The half circle cake will be where the popcorn will be placed. Cover the cakes with an initial layer of frosting, using up the rest of the first tub of frosting. Chill for 30 minutes.
  6. Spread the remaining tub of frosting over the 2 cakes. Chill for 15 minutes.
  7. Twist 3 strawberry bootlaces together and tie at one end; or see tip, below. Place the knotted end at the half circle end of the base cake and lay onto the frosting. Trim for the correct length. Repeat with the remaining laces until you have 5 red strips on the ‘popcorn bag’ cake.
  8. Write "Happy Birthday" on the white chocolate piece with the blue writing icing and place onto the centre of the popcorn bag cake. Press the popcorn onto the half circle cake until fully covered.

Betty's Tips

  • Strawberry bootlaces can be purchased online. Alternatively, use giant lolly snakes, cut into long thin strips; or pipe lines of red writing icing for the stripes on the popcorn bag.
  • Create your own cake board by covering a piece of sturdy cardboard with foil or try wrapping in fun paper, then cling film. Secure with sticky tape.
  • Use whatever popcorn you like. Why not be really indulgent and try toffee!