Ingredients :
For the base:
- 3 cups chopped rhubarb (½-inch pieces)
- 1 tablespoon cornstarch
- ⅓ cup granulated sugar
For the batter:
- 1 cup all-purpose flour
- ¾ cup granulated sugar
- 2 teaspoons baking powder
- ¼ teaspoon salt
- ½ cup whole milk
- 2 tablespoons unsalted butter, melted
- 1 teaspoon vanilla extract
For the topping:
- ¾ cup brown sugar
- 1 tablespoon cornstarch
- 1 ¼ cups boiling water
Instructions
- Preheat oven to 350°F (175°C). Grease an 8×8-inch baking dish.
In a small bowl, toss chopped rhubarb with 1 tablespoon cornstarch and ⅓ cup sugar. - Spread evenly in the prepared dish.
- In a medium bowl, whisk flour, ¾ cup sugar, baking powder, and salt.
- Stir in milk, melted butter, and vanilla until combined. Pour batter over rhubarb, spreading gently.
- In another bowl, mix brown sugar and 1 tablespoon cornstarch. Sprinkle over batter.
- Carefully pour boiling water over the top using the back of a spoon to avoid disturbing the sugar layer.
- Bake for 45–50 minutes, until golden brown and bubbling.
Let rest for 10–15 minutes before serving to allow the sauce to thicken. - Serve warm with ice cream, whipped cream, or custard.