Name: Potato Hash Cake
Prep time: 30 min
Cook time: 40 min
Total time: 70 min
Ingredients: Unsalted butter (to grease the baking dish); 4 pounds red bliss potatoes (peeled and grated); 1/2 white onion (grated); 3 tablespoons all-purpose flour (plus more to dust the baking dish); 3 eggs (lightly beaten); 1 1/2 teaspoon kosher or coarse sea salt (or to taste); 1/4 teaspoon freshly ground black pepper; 1/4 teaspoon baking powder; Olive oil (to brush the top of the potato hash)