They are surprisingly hard to grow like that believe it or not. That's approximately a 1 in 50 occurrence and the good ones command a high value. I tried for ab

They are surprisingly hard to grow like that believe it or not. That's approximately a 1 in 50 occurrence and the good ones command a high value. I tried for about 5 years to grow one like that unsuccessfully. Various conversations on the Internet resulted in giving up and returning to a more valuable carb-heavy crop (potatoes).