In your Kitchen Aid mixing bowl, add the egg whites, vanilla extract, salt and lemon juice
Start mixing at high speed for about 2 minutes
Once a creamy yet still soft texture starts to form, reduce speed to medium and start adding the sugar very progressively, one tbsp at a time. Each tbsp should take around 5 seconds, not less
Once all the sugar has been incorporated, keep mixing until you obtain a mixture that appears firm enough to hold together
When you reach the desired texture, pour your meringue mixture in a pastry bag equipped with the nozzle of your choice
Add the parchment paper on your baking tray
Start giving shapes to your meringues by squeezing the pastry bag. Make sure to keep some space between them so the air in the oven flow evenly
Preheat your oven at 95 degrees Celsius (203 degrees Fahrenheit) with convection on
Place your baking tray in the middle of the oven and let your meringues cook for an hour
Once an hour has passed, keep your oven door closed, turn off your oven and let your meringues sit there for 2 hours. This will help them dry up.
Afterwards, make sure to place them in a closed tupperware. This will preserve them from humidity.
