Rhubarb Tarte Tatin | Saveur

Ingredients

• 3⁄4 lb. fat rhubarb stalks, trimmed and cut into 1 1/2" long pieces
• 1 1⁄2 cups sugar, divided
• 4 tbsp. unsalted butter, plus 6 tbsp. cut into 1/2" cubes and chilled
• 1 tbsp. fresh lemon juice
• 2 tsp. vanilla extract
• 1⁄2 tsp. kosher salt
• 2 1⁄2 cups flour, plus more for dusting
• 2 tsp. baking powder
• 1⁄2 cup vegetable shortening
• 1⁄3 cup milk
• 2 large eggs
• Vanilla ice cream or whipped cream, for serving (optional)