Why Both Bagels and Donuts Have Holes
Weird History Food explains the long immigrant history of bagels and Donuts, primarily addressing why these unrelated baked goods both feature holes in the middle.
The answer is twofold. Cold rolls bake more evenly without that big, doughy center to worry about, and they can more easily be stacked on sticks or strung up on strings. This makes them perfect for carrying around the market or for stacking up high in bakery windows.