Mashed Potato Casserole
Rating
4.96 out of 5 stars
(23)
Ingredients
10 servings
- 1.75kg/ 3.5 lb potatoes (Sebago (Aus), Russet (US), Maris Piper / King Edwards (UK)(Note 1)
- 1 tbsp cooking / kosher salt (, for cooking potatoes )
- 2/3 cup milk (preferably full fat/whole milk but lite ok)
- 2/3 cup EXTRA milk (, for make-ahead option only (Note 2)
- 75g / 5 tbsp unsalted butter (, cut into 1cm / 1/2" cubes)
- 1/2 cup sour cream (or yogurt), full fat best)
- 1 tsp cooking/kosher salt (, or to taste)
- 1 1/2 cups (tightly packed) mozzarella (, freshly shredded (Note 3)
- 1 cup (tightly packed) Red Leicester, cheddar (or other flavoured cheese(Note 3)
- 200g / 6 oz bacon (streaky), chopped (Note 4)
- 1/4 cup green onion (, finely sliced)
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Preparation
Step 1
Cook bacon:
Step 2
Place bacon in a cold non-stick pan over medium heat (no oil). As the pan heats up the bacon fat will melt. Once you see some melted bacon fat, turn the heat up to medium high and stir for 3 minute or until golden.
Step 3
Drain on paper towels.
Step 4
Mash:
Step 5
Potatoes - Peel then cut into 3cm /1" chunks.
Step 6
Boil - Place in a large pot and cover with water so it’s 10cm / 4” above the potatoes. Add 1 tablespoon salt. Bring to a boil over high heat then reduce heat so it’s simmering rapidly. Cook 15 minutes or until potatoes are very soft (jab with fork to test, they should fall apart).
Step 7
Drain well, then return into pot. Leave for 1 minute, shaking pot every now and then, to encourage evaporation of water.
Step 8
Mash - Add milk (including EXTRA milk if making-ahead), butter, sour cream and 1 tsp salt. Mash until smooth. (Do not use food processor, blender or beater, makes it gluey!)
Step 9
Make-ahead directions:
Step 10
Fridge - Allow to fully cool on the counter then cover tightly with cling wrap and refrigerate.
Step 11
Dechill - Take out onto counter 2 hours prior to reheating.
Step 12
Assemble:
Step 13
Preheat oven to 200°C / 400°F (180°C fan).
Step 14
Spread the potato in a 2 litre / 2 quart baking dish (Note 5). Smooth the surface.
Step 15
Sprinkle - Sprinkle potato with the cheeses, then bacon.
Step 16
Bake covered - Cover loosely with foil. Bake for 20 minutes covered (if freshly made) or 35 minutes (make-ahead option).
Step 17
Bake uncovered - Remove foil then bake a further 10 minutes until the cheese is bubbly and golden.
Step 18
Serve - Sprinkle with green onion then serve! It stays warm for a good 20 minutes thanks to that protective layer of cheese. Oh, the powers of cheese!
Step 19
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