German Rhubarb Streusel Cake

Ingredients

• 2 cups all-purpose flour
• 0.5 cups plus 3 tablespoons white sugar , divided
• 1 large egg
• 2 teaspoons vanilla sugar
• 0.5 cups unsalted butter , cubed and softened
• 3.5 cups chopped rhubarb
• 2 tablespoons cold unsalted butter , cubed

Instructions

1. 1

   Sift flour into a large bowl, making a well in the center. Add 1/2 white cup sugar, egg, and vanilla sugar into well. Distribute 1/2 cup softened and cubed butter evenly on top; mix into a dough using your hands. Cover and refrigerate for 30 minutes.

2. 2

   Preheat the oven to 325 degrees F (165 degrees C). Grease a 9-inch springform pan.

3. 3

   Place 2/3 of the dough in the prepared pan, smoothing out any bubbles. Cover with rhubarb.

4. 4

   Crumble remaining dough between your fingers and sprinkle over rhubarb. Sprinkle with remaining 3 tablespoons white sugar, then scatter 2 tablespoons cold cubed butter over streusel.

5. 5

   Bake in the preheated oven until streusel is lightly brown and crisp, 40 to 50 minutes.