Ingredients
Filling
- 6 cups total strawberries and rhubarb, cut into 1/2 inch pieces
- zest of 1 lemon
- 1/2 cup sugar
- 2 tbsp cornstarch
Topping
- 2 1/2 cups flour
- 2 tbsp baking powder
- 2 tbsp sugar
- 1/2 tsp salt
- 1 stick (1/2 cup) butter, cut into 1/2-inch cubes
- 1 1/3 cups milk
- 1 egg
Instructions
- Preheat oven to 375°F.
- Combine filling ingredients in a large bowl. Pour into an ungreased 8x8-inch square baking dish (preferably glass or ceramic - the acidic filling can corrode a metal pan).
- Combine flour, baking powder, sugar, and salt in a large bowl or a food processor. Whisk or pulse to combine. Add cubes of butter and cut in with a pastry blender or pulse in food processor until mixture resembles coarse meal. Add milk and stir until a wet dough forms, then drop by spoonfuls on top of the filling.
- Brush topping with beaten egg thinned with a tablespoon or two of water. Sprinkle lightly with sugar, then bake until filling is bubbly and topping is golden, about 45-50 minutes. Cover with foil if the topping starts to get too brown before the filling is done.
- Cool at least 15 minutes before serving. Serve with whipped cream, if desired.