For the macaron shells:
Makes 34 shells
Ingredients
Supermarket - Coles or Woolworths
66g egg white
2g egg white powder
60g caster sugar
90g almond flour
110g icing sugar
A few drops of orange food colouring
Warrawong Fruit King
1/3 teaspoon grated mandarin zest
Method
1. Preheat oven at 170 degrees Celsius.
2. Blitz almond flour, icing sugar and grated orange zest to combine and make the meal as fine as possible. Sift blitzed ingredients together in a bowl.
3. In a separate bowl, whisk egg whites and egg white powder till soft peaks are formed. Whisk in caster sugar until stiff peaks form.
4. To the egg white mixture, fold in dry ingredients from Step 2 in 1/3 portions to combine. Add colouring, then fold in the mixture more vigorously. Test the consistency from time to time by lifting a generous dollop of macaron paste and dropping it into the mixing bowl. If the macaron paste does not settle smoothly after 30 seconds, continue folding the paste. If the macaron paste smooths out too quickly, you've gone too far.
5. Pipe out the shells onto a baking sheet lined with parchment and leave them to rest for 25 minutes before baking.
6. When a crust is formed, turn temperature on oven down to 140 degrees Celsius and bake for 15 minutes, turning the tray halfway through baking.
7. Cool parchment of baked shells on cooling rack. Unmould when the shells are completely cool.
For the Orange Buttercream:
100g unsalted butter
250g icing sugar
2 teaspoons lemon juice
3 teaspoons mandarin juice
2/3 teaspoon grated mandarin zest
2 tablespoons mandarin-infused milk
1. Beat butter and icing sugar together till creamy.
2. Add juices and zest and beat till smooth.
3. Add milk and beat till combined. If this is too runny, chill buttercream before piping onto shells.
4. Fill cooled macaron shells with buttercream and sandwich.