Blueberry Lattice Coffeecake - cooking recipe

Ingredients

1 package (1/4 oz.) active dry yeast
1 tsp. sugar
1/4 cup warm water
1 egg, beaten
1/2 cup butter, softened
1/3 cup milk
3 cups all-purpose flour
1/4 cup sugar
1/2 tsp. salt
2 packages (8 oz. each) cream cheese, softened
2 egg yolks
2/3 cup sugar
1 tsp. vanilla extract or lemon extract
1 tbsp. grated lemon peel (optional)
1 cup fresh or frozen blueberries

Preparation

Dissolve yeast and 1 tsp. sugar in warm water in large bowl. Let stand 10 minutes.