CHICAGO (AP) -- The Oracle of Omaha is betting that the country's candy jar is recession-proof.

With financing from Warren Buffett, candy maker Mars Inc. on Monday said it is buying confectioner Wm. Wrigley Jr. Co. for an estimated $23 billion in cash. The deal would marry brands that sweet-toothed Americans have munched on for decades: Mars owns Snickers and M&Ms; Wrigley's gum brands include Juicy Fruit, Orbit, Extra and Big Red.

"A good time to buy a really great business is when you can do it," Warren Buffett said on CNBC Monday, adding that he understands Mars and Wrigley better than the balance sheets of most major banks.

Buffett's Berkshire Hathaway Inc. will purchase a $2.1 billion minority equity interest in the Wrigley subsidiary once the deal is completed. The Omaha, Neb.-based company also offered $4.4 billion of subordinated debt to fund the deal.

"In terms of Warren Buffett's sweet spot, these are exactly the kind of brands that he wants," said Jet Hollander, a former candy industry executive who is president of the snack food consulting firm Pre-Eminence Strategy Group.

If the buyout receives regulatory and shareholder approval, the combined companies would leapfrog over Britain's Cadbury Schweppes as the world's largest confection maker -- a move that's already fueling