Depending on the region of the country you grew up in, these may have been called compost, kitchen sink, or cowboy cookies. In my household they were often a product of leftover bits and pieces from holiday baking. A half bag of butterscotch chips, peanuts, crushed up pretzels, etc. I have vivid memories of some version of these being on the counter after soccer practice. Packed with oats, dried fruit, and chocolate chunks, I think they were seen as a more nutritious option for a post workout treat. Use whatever mix-ins you please. I have written in chips, chunks, toasted coconut flakes, and walnuts. Use what you have. Don’t overthink it.