Let the piece of salmon with salt, pepper, the garlic slices and a pinch of sugar soak for at least half an hour.
In the meantime, grate the ginger, slice the spring onion, grate the lime zest and squeeze the juice.
Dice the salmon and mix with the ginger, spring onions, lime zest and 1 teaspoon of lime juice and olive oil. If necessary, season with salt and pepper. Layer the salmon in glasses or on small plates, pour the diced avocado over them, drizzle with the lime juice and sprinkle with a little fresh pepper from the mill. Top with chives rolls.