German Rhubarb Pie - Recipe Tweets

Ingredients

• 1 cup all-purpose flour
• 1/2 teaspoon salt
• 1/2 teaspoon baking powder
• 2 tablespoons sugar
• 6 tablespoons cold unsalted butter
• 3 tablespoons cold water
• 3 cups chopped rhubarb
• 2 tablespoons brown sugar
• lemon zest
• 1/2 teaspoon vanilla sugar
• 1/3 cup white sugar
• 1 tablespoon unsalted butter
• 1 egg, beaten
• 1 tablespoon granulated sugar