1. Combine cheeses; reserve 1/4 cup. Combine remaining cheeses with br

2. Combine flour, salt and baking powder in mixing bowl. Cut in 1/3 cu

3. Form into a ball then flatten to 1/2 inch thickness. Smooth the edg

4. Place half of zucchini in pastry-lined pan. Cover with half of sour

5. Bake in preheated 400-degree oven for 10 minutes. Lower heat to 325

Filling: 1. Cook zucchini in water and 1 teaspoon salt in covered saucepan for

2. Beat egg yolks slightly; add sour cream, 1 teaspoon salt, flour, ch

3. In large mixing bowl, beat egg whites with cream of tartar until st