Blueberry Crunch Coffee Ring - cooking recipe

Ingredients

Walnut Streusel (following)
1 1/2 c. all-purpose flour
3/4 c. sugar
3 tsp. baking powder
1/2 tsp. salt
1/4 tsp. nutmeg
1/3 c. firm butter or margarine
1 c. fresh blueberries (drain if frozen, then measure)
1 egg
1/2 c. milk
1 tsp. vanilla
powdered sugar (optional)

Preparation

In a well-greased and flour dusted 9-inch spring-form pan, pat about 1/2 of Walnut Streusel in an even layer and set aside.