Yukon Gold potatoes bring extra buttery flavor to these cakes, and their waxy texture (as opposed to a russet’s floury texture) helps hold the cakes together.
Position a rack in the center of the oven and heat the oven to 375°F.
Scrub the potatoes and pat them dry. Put them on a baking sheet and lightly sprinkle with salt. Bake until tender when poked with a skewer, 40 to 50 minutes. Remove from the oven and set aside until cool enough to handle.
While the potatoes are cooling, heat 2 Tbs. of the olive oil in a 12-inch skillet over medium heat. Add the onion and a pinch of salt and cook, stirring often, until softened, about 5 minutes. Add the garlic and cook for 1 minute, then add the watercress. Season to taste with salt and pepper and cook, stirring, just until the watercress wilts, 1 to 2 minutes.
Put the potatoes in a large bowl and break them into small chunks with a spoon. Add the watercress mixture and the mascarpone, mix to combine, and season to taste with salt and pepper. Divide and shape the potato mixture into 16 equal patties, about 2 inches in diameter and ½ inch thick. (The cakes can be made to this point up to 4 hours ahead and refrigerated.)
Heat the oven to 200°F. Lightly oil a rimmed baking sheet. Heat the remaining 3 Tbs. olive oil in a 12-inch nonstick skillet over medium heat. Working in 2 batches, cook the potato cakes until golden on both sides, 3 to 4 minutes per side. Transfer each batch to the baking sheet, season lightly with salt, and keep warm in the oven for up to 30 minutes before serving.
Love to cook? Sign up today to get daily recipes from Fine Cooking plus special offers
© 2018 The Taunton Press, Inc. All rights reserved.
Fine Cooking may receive a percentage of sales for items purchased through links on this site, including Amazon Associates and other affiliate advertising programs.
Do you really want to delete the list, ?
This won't delete the recipes and articles you've saved, just the list.
This feature has been temporarily disabled during the beta site preview.
Add/Edit a private note for this recipeThis note is only visible to you.
Double CheckAre you sure you want to delete your notes for this recipe?