Step 1
Preheat oven to 200°C/180°C fan forced. Brush a 6-hole (3/4 cup) muffin pan with melted butter. Line bases with small rounds of baking paper.
Step 2
Place potato in a large saucepan and cover with plenty of cold water. Bring to the boil over high heat. Cook for 15 minutes or until very tender.
Step 3
Drain potato, then return to the pan. Cook, shaking the pan, over high heat for 1 minute or until the liquid has evaporated. Remove from heat. Mash until smooth.
Step 4
Meanwhile, cook the bacon in a non-stick frying pan over medium heat for 2 minutes each side or until golden brown. Set aside to cool, then finely chop.
Step 5
Add the bacon, chopped butter, egg and cheese to the potato, and fold to combine. Season. Divide mixture evenly between prepared muffin pan holes, pressing gently into the holes. Use a fork to rough up the surface, then lightly brush the tops with melted butter. Bake for 30 minutes or until golden brown.
Step 6
Stand cakes in the muffin pan for 10 minutes to cool and firm up slightly. Run a knife around the edge of each to loosen, then gently prise out. Serve warm.