Pour eggs, sugar, water in the mixing bowl and paste SP on the wire whisk.
Start with high speed to wipe the ingredients till being fluffy and thick batter.
And reduce to medium speed beat for 5 seconds then low speed another 5 seconds
Put sifted flour and beat with low speed till mixed then gradully add in milk, lime juice and vanilla beat till incorporate or you can use spatula mix the batter.
Divide the batter to mix with food colouring by folding with spatula.
Scoope the batter to the individual muffin cups and bring to steam in the boiling water (the water in your steamer must be boiling with high heat).
Once you put the batter into the steamer then you have to reduce to low heat.