@webinista having just come back from LA, my daughter and I had a whole suitcase for bringing back food.
bagels (Western Bagel), Trader Joe's peanut butter protein granola (the best ever), concord grape juice (yes I brought back gallons in glass jars), dried hibiscus flowers for tea, and tamarind pods (not sure if we were allowed those but my daughter loves them).
Fancy shops are great for treats.