Step 1

Saute onions in ¼ cup oil on a low flame for at least 20-30 minutes, but longer is even better. You can saute the onions ahead of time.

Step 2

Preheat oven to 400.

Step 3

In a large bowl, combine the caramelized onions, potatoes, oil, eggs, potato starch, salt and pepper, if using.

Step 4

For best results, break up the potatoes first using a potato masher or a heavy spoon.

Step 5

Using an electric mixer, blend together all ingredients until mostly smooth. A few lumps are fine. Do not over-mix.

Step 6

Grease cupcake pans well with oil (a little extra in each pan is well worth the calories - it really helps the knishes develop a fried-like crust). Fill the pans until almost full with potato batter.

Step 7

Bake at 400 for about 26-28 minutes, until tops are golden brown.

Step 8

Serve hot.

Step 9

These knishes freeze well!