German Wine Cake - cooking recipe

Ingredients

3/4 c. unsalted butter
1 c. sugar
3 egg yolks
1 tsp. vanilla
3/4 c. blackberry jam
1/8 c. buttermilk
1/2 tsp. soda
1/2 c. wine or grape juice
1 1/2 c. sifted flour
1/4 tsp. salt
1/2 tsp. ground cinnamon
1/2 tsp. ground cloves
1/2 tsp. allspice
1 c. nuts
3 egg whites, stiffly beaten

Preparation

Cream butter and sugar until fluffy. Add egg yolks 1 at a time and mix thoroughly. Mix in jam. Stir together buttermilk and soda and add to first mixture. Sift together flour, salt and spices. Add to creamed mixture alternately with wine. Add nuts. Carefully fold in stiffly beaten egg whites. Pour into a greased Bundt pan. Bake at 350\u00b0 until toothpick comes out clean.