Creme egg cupcakes

Ingredients:
50 grams cocoa powder
175 grams all-purpose flour
1/2 teaspoon salt
1/2 teaspoon bicarbonate of soda
225 grams caster sugar
175 grams unsalted butter, softened
2 large eggs, at room temperature
1 teaspoon vanilla extract
175 milliliters milk
2 cup Easter eggs (can be different kinds of small Easter eggs)
1 cup crushed chocolate Easter eggs
X6 cadbury crème eggs
Mini crème eggs
Chocolate sauce
Egg Yolk Ganache
200 grams white chocolate
100 milliliters thickened cream
1 drop orange food gel
2 drops yellow food gel
Frosting
1 batch fluffy vanilla buttercream

Instructions:
Egg Yolk Ganache
Combine chocolate and cream in a microwave safe mixing bowl and mix for 20 seconds at a time, mixing each time until smooth. Add yellow and orange food gel and combine until evenly coloured. Transfer to a squeeze bottle and set aside.
Cupcakes
Preheat a fan-forced oven to 160C (320F) or 180C (356F) for a conventional oven. Line a cupcake tin with cupcake liners.
In the bowl of a stand mixer fitted with the paddle attachment, add the cocoa powder, plain flour, salt, bicarb soda and sugar. Turn mixer on low speed and allow it to mix for a couple minutes to help everything combine well!(alternatively you may do this by sifting the ingredients together). Add the softened butter there is no butter visible and it's well incorporated into the dry.
Next, add milk and eggs in a jug and whisk until well combined.
Add wet ingredients to dry ingredients in a slow and steady stream until no dry ingredients are visible. Scrape down the bowl, add Easter eggs of your choosing, and mix for another 20 seconds.
Fill each paper 3/4 of the way (using an ice cream scoop to transfer the batter into the cupcake liners makes this a quick and easy process otherwise you can use two tablespoons). Bake for 20-25 min or until a toothpick inserted comes out clean. Allow them to cool completely on a wire cooling rack before frosting.
To prepare Easter eggs, cut large and mini crème eggs in half and set aside. Add a dab of egg yolk ganache to the mini eggs and allow to set for 10 min.
Core the centre and fill with chocolate sauce.
Fit the end of a piping bag with a medium round tip and frost in a double donut swirl. Drizzle egg yolk ganache over it before carefully placing Easter eggs on top. One large crème egg and 3 small ones.