The Collaborative International Dictionary of English v.0.48:

Flasket \Flask"et\, n. [Cf. W. fflasged a vessel of straw or
   wickerwork, fflasg flask, basket, and E. flask.]
   1. A long, shallow basket, with two handles. [Eng.]
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            In which they gathered flowers to fill their
            flasket.                              --Spenser.
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   2. A small flask.
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   3. A vessel in which viands are served. [Obs.] --Pope.
      [1913 Webster] flat-bottom