Step 1

In a large bowl, mix together all of the ingredients for the steak tartare until the mix starts to bind together

Step 2

Shape the mix into 4 patties using a round cutter (there will be sauce leftover in the bowl, do not discard as it is needed for step 4)

Step 3

Toast the slices of sourdough

Step 4

Plate up the steak tartare patties and drizzle with a little of the sauce left in the bowl. Top with a raw egg yolk and accompany with a slice of sourdough bread and rocket. Season and serve immediately