Buttery, tender, and incredibly simple shortbread cookies with a fun pop of mini M&M’s, perfect for any occasion.
Ensure butter is at true room temperature for best results.
Do not overmix the dough once flour is added to keep cookies tender.
Chilling the dough for at least 30 minutes is crucial for easy slicing and shape retention.
Let cookies cool completely on the baking sheet before handling.
For plain shortbread, simply omit the mini M&M candy.