Blueberry Picnic Cake

Here's a tasty summertime dessert that I discovered while we were in Oregon. In fact, my sister, Mary, made it! And its really good! I made it yesterday for prayer meeting and people there seemed to like it too so I am sharing it with my bloggy friends.

3 cups flour
2 cups sugar
1 cup butter, softened
Grated rind of one lemon
1/2 tsp. allspice
1 tablespoon baking powder
1 tsp. salt
3 eggs, separated
1 1/2 cups milk
2 cups blueberries

Mix flour and sugar in a large bowl; cut in butter until crumbly. Reserve 1 cup of this mixture for topping. Add lemon rind, allspice, baking powder and salt to remaining mixture. Mix egg yolks into milk and add to dry ingredients beating until smooth. Beat egg whites until stiff. Fold gently into batter. Pour into greased and floured 9 X 13 inch pan. Scatter blueberries and reserved crumb mixture over the top. Bake in preheated 350 degree oven for 40 minutes or until golder brown. Enjoy!