Mince the onion and dice the potatoes into small cubes. Soak the potatoes in water and drain.

Cut the bacon into 5mm strips.

Place potatoes, onion, and bacon in a microwave-safe container. Cover loosely with plastic wrap and microwave at 600W for 5 minutes.

Mash the potatoes lightly with a fork.

Add flour, milk, butter, salt, and pepper to the mixture and stir well.

Cover loosely with plastic wrap and microwave at 600W for 2 minutes.

Mash the potatoes further while mixing. Let the mixture cool completely.

Place the cooled mixture onto spring roll wrappers, fold and seal the edges with the binding mixture (flour and water).