Makes 6 – 8 servings
1 1/2 cup white flour (divided)
1 cup whole wheat flour
1/2 cup brown sugar, packed
1/4 cup unsalted butter
1/3 cup chopped nuts (optional)
1 cup sugar
1 teaspoon baking soda
1/4 teaspoon salt
1/2 cup shortening
1 1/4 cup buttermilk (divided)
1 teaspoon vanilla
6 ounces semisweet chocolate chips
Streusel Topping: Combine 1/2 cup flour and brown sugar; cut in butter. Stir in nuts and set aside.
Combine remaining flour, sugar, soda and salt. Stir in shortening, eggs, 1 cup of buttermilk, and vanilla; beat until smooth.
In microwave, melt chocolate. Stir in 1 cup of batter and remaining 1/4 cup buttermilk.
Alternatively pour batters into greased 13×9 baking pan; cut through with knit to marble. Top with reserved nut mixture.
Bake at 350 degrees for 30 – 35 minutes.