Sour Cream Coffee Cake

I haven't made anything for the hubby to bring to his office lately, so I thought I'd send something in this week.  Mr. Sprinkles is a HUGE fan of cinnamon and brown sugar so I thought a cinnamon, brown sugar, and walnut streusel coffee cake would be nice to have for those Monday morning meetings.

Sour Cream Coffee Cake
Makes 12 servings

• 1/2 cup packed brown sugar
• 1/4 cup chopped walnuts
• 2 teaspoons ground cinnamon
• 1 cup granulated sugar
• 1/4 cup butter, softened
• 2 large egg whites
• 1 cup sour cream
• 1 teaspoon vanilla extract
• 1 3/4 cups all-purpose flour
• 1 teaspoon baking powder
• 1 teaspoon baking soda
• 1/2 teaspoon salt

1. Preheat oven to 350F. Combine brown sugar, walnuts, and cinnamon; set aside.
2. Using a mixer, cream together the granulated sugar and butter in a large bowl. 
3. Add egg whites, 1 at a time, beating well after each addition. 
4. Beat in sour cream and vanilla.
5. Combine flour, baking powder, baking soda, and salt. 
6. Gradually add flour mixture to sugar mixture; beat well. 
7. Spread half of batter into an 8-inch square baking pan coated with cooking spray. Sprinkle half of walnut streusel over batter. Spread remaining batter over streusel. Top with remaining streusel.
8. Bake at 350° for 45 minutes or until a wooden pick inserted in center comes out clean.