Sniper in the Mist

Today's Puzzle:

Could this be called a British national dish?

Link to Play Along:

Sniper in the Mist by Flinty https://tinyurl.com/SudokuSleuthSniperInTheMist

Rules:

Normal Sudoku Rules Apply.

Fog of War Most of the grid is covered in fog. As you solve more of the grid will appear.

Killer Cages Digits in cages must sum to the number in the top-left corner, and digits cannot repeat within a cage.

All cages are exactly 3 cells in size, and do not overlap / share cells.