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Burger companion (6 letter answer)
The answer MALTED is rarely seen, appearing only about once every 1200 puzzles.
Ice cream treat
Soda fountain drink
Soda jerk's drink
MALTED as a noun:
1. (malted, malt, malted milk) = a milkshake made with malt powder
MALT as a verb:
1. treat with malt or malt extract; "malt beer"
2. turn into malt, become malt
3. convert grain into malt
4. convert into malt
MALTED as an adjective:
1. of grain that has been converted into malt; "malted barley"