Take the Frosted Chocolate Sponge Challenge
Bake and decorate a frosted chocolate sponge cake using batter and chocolate frosting, practicing measuring, mixing, and safe oven use with adult help.

About this activity
Bake and decorate a frosted chocolate sponge cake using batter and chocolate frosting, practicing measuring, mixing, and safe oven use with adult help.
What you need
Step by step
- 1
Step 1
Wash your hands and put all the materials on the counter.
- 2
Step 2
Preheat the oven to the temperature shown on the cake box with an adult helping you.
- 3
Step 3
Grease the inside of the cake tin with a little butter or oil.
- 4
Step 4
Line the bottom of the tin with a circle of baking paper.
- 5
Step 5
Measure the boxed cake mix into the mixing bowl.
- 6
Step 6
Add the eggs milk and oil into the mixing bowl following the box instructions.
- 7
Step 7
Whisk the ingredients in the bowl until the batter looks smooth and even.
- 8
Step 8
Pour the batter from the bowl into the prepared cake tin.
- 9
Step 9
Smooth the top of the batter with your spatula so it is flat.
- 10
Step 10
Ask an adult to put the tin in the oven and set the timer for the time on the box.
- 11
Step 11
Ask an adult to check the cake with a skewer or toothpick to see if it comes out clean.
- 12
Step 12
Ask an adult to take the cake out of the oven and put it on the cooling rack.
- 13
Step 13
Wait until the cake is completely cool on the cooling rack.
- 14
Step 14
Spread chocolate frosting over the cooled cake and add any fun decorations you like.
- 15
Step 15
Share a photo of your finished frosted chocolate sponge cake on DIY.org.
Fun facts
How do you bake and decorate a frosted chocolate sponge cake with a child?
To run the Frosted Chocolate Sponge Challenge, start by reading the recipe together and preheating the oven. Have the child measure dry and wet ingredients, whisk batter, and pour it into a greased tin while an adult handles the oven and hot pans. Bake until a skewer comes out clean, then cool completely. Let the child spread chocolate frosting and add sprinkles or fruit. Use timers, simple tasks, and lots of encouragement.
What materials do I need for the Frosted Chocolate Sponge Challenge?
Youβll need basic baking ingredients: flour, sugar, cocoa powder, baking powder, salt, eggs, butter (or oil), milk, and vanilla. For chocolate frosting use butter, cocoa, icing sugar, and a little milk or cream. Tools: mixing bowls, measuring cups and spoons, whisk or electric mixer, spatula, 20β23cm cake tin, parchment paper, cooling rack, oven mitts, and piping bag or knife for decorating. Adults should handle hot equipment and sharp knives.
What ages is the Frosted Chocolate Sponge Challenge suitable for?
This activity suits different ages: toddlers (2β4) can pour pre-measured ingredients, stir with help, and decorate with large sprinkles while seated on a secure step stool. Ages 5β8 can measure, crack eggs with supervision, and use a whisk or hand mixer under guidance. Ages 9+ can follow a full recipe and help with assembly, but an adult must always operate the oven and handle cutting or hot pans.
How can I keep my child safe during the Frosted Chocolate Sponge Challenge?
Keep safety top priority: always supervise near the oven and hot pans, let cakes cool before touching, and use oven mitts. Teach children not to taste raw batter (raw eggs/flour risks) and to wash hands after handling eggs. Keep sharp knives and metal graters for adults, and secure chairs so kids can reach counters safely. Explain safe mixing and avoid loose sleeves or long hair near mixers. Have a phone ready in case of emergencies.
Watch & Learn
Need help?
What can we use if we can't find the boxed cake mix or baking paper?
If you don't have the boxed cake mix, mix 1ΒΌ cups plain flour, 1 cup sugar, 1/3 cup cocoa, 1 tsp baking powder and a pinch of salt to replace it, and if you don't have baking paper, grease the cake tin well with butter or oil and press a circle of foil into the bottom before pouring the batter.
My cake sank in the middle or the skewer comes out wet β what should I check?
If the cake sinks or the skewer/toothpick doesn't come out clean, make sure you added the eggs, milk and oil exactly as the box instructs, whisked the batter until it looked smooth and even, and ask an adult to bake it the full time on the box plus 5β10 minutes if needed before testing again.
How can I adapt the activity for different ages?
For younger children, focus on washing hands, measuring the boxed mix into the mixing bowl, and helping whisk and smooth the batter while an adult handles preheating and oven steps, and for older kids let them follow the whole process including cooling on the rack and spreading the chocolate frosting themselves with adult supervision for the oven.
How can we personalize or extend the Frosted Chocolate Sponge Challenge?
To extend or personalize the cake, stir chocolate chips or a spoonful of jam into the batter before pouring into the prepared tin, split the cooled cake to add a filling, or decorate the spread chocolate frosting with themed sprinkles and a photo setup to share on DIY.org.