Irish Colcannon Bombs are a mix of mashed potatoes and kale stuffed with Irish cheddar, rolled into balls, breaded and fried. In other words, potatoes surrounding a "bomb" of melted cheese.
In a large bowl, mix together the mashed potatoes, kale, egg, green onions, 1/2 cup Panko bread crumbs and salt until smooth
Use a small cookie scoop (about 2 tablespoon capacity) to scoop a mound of colcannon potatoes and roll one cheese cube into the center. Repeat the process until you have used all the mashed potato (colcannon) mixture.
Roll each mashed potato ball to coat in Panko bread crumbs.
Pour vegetable oil into a pan so it is about 1/2-inch deep. Heat oil to between 365 - 375 degrees.
Add the Irish Colcannon Bombs to the oil, 4 - 5 at a time (don't crowd the pan). Fry on first side until golden brown. Flip and fry on second side until golden brown. Remove with slotted spoon to paper towel lined plate.
Whisk together the Dijon mustard and maple syrup and drizzle over the mashed potato balls. Serve immediately.