01 -
Combine cooked russet potatoes, diced bacon, diced green onions, sour cream, salt, and pepper in a large bowl. Mash using a potato masher or fork until mixture is mostly smooth with some small chunks remaining.
02 -
Slice the block of cheddar cheese into strips about 1/4 inch thick.
03 -
Take a spoonful of potato mixture, flatten in your palm, place a cheese strip in the center, and mold the potato mixture around to enclose the cheese completely, forming a ball. Repeat until all potato mixture is used.
04 -
Set up three bowls: the first with flour, the second with beaten egg, and the third with a mixture of cornstarch and panko breadcrumbs. Roll each potato stick first in flour, then dip in egg, then coat thoroughly in cornstarch-panko mixture.
05 -
Pour oil into a deep fryer or large heavy-bottomed pot to a depth of at least 2 inches. Heat oil to 350°F (180°C).
06 -
Carefully lower coated potato sticks into hot oil with tongs. Fry in batches for about 3 minutes, or until golden brown and crisp. Avoid overcrowding the pan.
07 -
Remove fried potato sticks with a slotted spoon. Transfer to a plate lined with paper towels. While hot, lightly sprinkle with salt.
08 -
To bake instead of fry, preheat oven to 400°F (200°C). Arrange coated sticks on a parchment-lined baking sheet, drizzle with olive oil, and sprinkle with salt. Bake for 15 minutes or until golden and cheese is melted.
09 -
Allow the potato cheese sticks to cool for several minutes before serving, as the filling will be extremely hot.