Apple-nut coffee cake

1 c  Unbleached all-purpose flour
    1/2 ts baking powder
    1/2 ts Baking soda
    1/8 ts Salt
    1/2 c  Granulated sugar
    1/4 c  Shortening
      1    Egg
    1/2 ts vanilla
      1    Apple, cored and chopped
    1/2 c  Sour cream
    1/4 c  Walnuts, chopped
    1/4 c  Brown sugar
      1 tb butter
    1/2 ts Cinnamon
 
   In a medium bowl, stir together flour, baking powder, soda and salt. Set
  aside.
  
   In a large bowl, beat together sugar and shortening till fluffy. Beat in
  egg and vanilla.  Stir about half the dry ingredients into the sugar
  mixture.  Mix in sour cream, then stir in remainder of dry ingredients. Mix
  in apple.  Spread evenly in a lightly greased and floured 8" round pan.
  
   In a small bowl, mix nuts, brown sugar, butter and cinnamon till crumbly.
  Sprinkle over coffee cake.
  
   Bake in a 350^F oven for 25 to 30 minutes, or until cake tests done. Serve
  warm.
  
   From:  King Arthur Baker's Catalogue
  
   Posted on GEnie's Food and Wine Roundtable by J.APPLEBURY [AppleDebbie] on
  04/12/93.  Formatted for MM by Rosanne Troxel (D.TROXEL/Genie;
  TJFM10C/Prodigy)
 
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