These are my favourite kind of entrée: crispy + creamy + smoky + poppy (thanks to the pearls), and they look like you ordered them at a very good wine bar.
They’re also surprisingly practical. You can make the rosti bases ahead, crisp them up before serving, then set up a little assembly line: rosti → crème fraîche → trout → pearls. Done.
Makes
About 18–24 mini bites (depending on size)
Time
- Prep: 15 minutes
- Cook: 20–25 minutes
- Assemble: 5 minutes
Ingredients
Mini rosti bases
- 600 g potatoes (about 3 medium) / 1.3 lb
- 1 small onion (optional, but great)
- 1 egg
- 2 tbsp plain flour / all-purpose flour (optional but helps bind)
- 1 tsp salt
- Black pepper
- Neutral oil for frying (or olive oil)
Toppings
-
200–250 g smoked trout / 7–9 oz, flaked into small pieces
(Smoked salmon also works if that’s what you have.) - Crème fraîche (or thick Greek yoghurt / sour cream)
- 1 lemon (zest + wedges)
- Fresh dill or chives (optional, for garnish)
- Sticky Balsamic Pearls (to finish)
Method
1) Make the rosti mixture
- Grate the potatoes (and onion if using).
- Put into a clean tea towel and squeeze out as much liquid as you can. (This is the crispiness secret.)
- Tip into a bowl. Add egg, flour (if using), salt and pepper. Mix well.
2) Cook mini rosti
- Heat a large frying pan over medium-high heat with a thin layer of oil.
- Scoop heaped teaspoons of mixture into the pan and flatten into small rounds (about 5–6 cm / 2–2.5 in).
- Cook 3–4 minutes per side until deep golden and crisp.
- Drain on paper towel. Sprinkle with a tiny pinch of salt while hot.
Make-ahead tip: Cook rosti up to a day ahead, chill, then re-crisp in a hot oven (200°C / 390°F for 8–10 minutes) before topping.
Assembly (right before serving)
- Place rosti on a platter.
- Add a small dollop of crème fraîche to each.
- Top with a flake of smoked trout.
- Finish with:
- a tiny pinch of lemon zest
- a small sprig of dill/chive
- a few Sticky Balsamic Pearls on top (the “wow” moment)
Serving notes (so they stay crisp)
- Assemble close to serving time (crème fraîche will soften them if they sit too long).
- If you’re hosting, keep rosti warm in the oven and do a quick topping assembly line when guests arrive.
- Serve with lemon wedges on the side.
Variations (same vibe, different twist)
- Spicy: add a tiny smear of horseradish cream under the trout.
- Extra luxe: add a few salmon roe (optional) plus pearls.
- Vegetarian: swap trout for roasted mushrooms + thyme, keep crème fraîche + pearls.
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