Shopping at Trader Joe's is often like going on a treasure hunt — and on this particular hunt, we found mozzarella di bufala, the specialty buffalo-milk mozzarella that makes the ultimate caprese salad (mozzarella, tomatoes and basil drizzled with olive oil). But remember the standing caveat for all Trader Joe's merchandise: Just when you fall in love with it, it may not be there anymore.

Size • 7 ounces/200g

Price • $6.49 at Trader Joe's

Per 1-ounce serving • 80 calories, 60 calories from fat, 7g fat, 100mg sodium, less than 1g carbohydrate, no sugar, 4g protein.

— Joe Bonwich