Peel and grate the potatoes. Place in a colander for 15 minutes to drain. Squeeze the grated potato with your hands to remove any liquid. Wrap and then wring in a tea towel (dish towel) or paper tower to remove any residudal liquid.

Tip the potato into a large bowl. Add the eggs and flour, if using, then season generously with salt and pepper. Mix well.

Add enough oil to a large frying pan to reach a depth of about 5 mm - 1 cm (1/4 - 1/2 inch). When the oil is hot, carefully add teaspoons of the potato mixture to make small round potato cakes. Flatten them slightly. Fry the latkes over medium heat for a few minutes on each side until deep golden brown. Drain on paper towel.

Serve hot or at room temperature with salmon pastrami and horseradish creme fraiche.