Strawberry Rhubarb Coffee Cake

Prep time: 45 min
Cook time: 55 min
Servings: 12
Yield: 12 servings

Description

This strawberry rhubarb coffee cake is sweet and fruity with a crunchy crumb topping. Adding nuts to the streusel bumps up the crunch.

Ingredients

2/3 cup sugar
1/3 cup cornstarch
2 cups chopped rhubarb
1 (10 ounce) package frozen sliced strawberries, thawed
2 tablespoons lemon juice
3 cups all-purpose flour
1 cup sugar
1 teaspoon baking powder
1 teaspoon baking soda
1 cup cold unsalted butter, cut into pieces
1 cup buttermilk
2 large eggs
1 teaspoon vanilla extract
3/4 cup sugar
1/2 cup all-purpose flour
1/4 cup cold unsalted butter, cut into pieces

Directions

1 Combine 2/3 cup sugar and cornstarch in a large saucepan; stir in rhubarb and strawberries. Bring to a simmer over medium heat; cook until thickened, about 2 minutes. Remove from the heat, stir in lemon juice, and let cool.
2 While the filling cools, preheat the oven to 350 degrees F (175 degrees C). Lightly grease a 9x13-inch baking dish.
3 Combine 3 cups flour, 1 cup sugar, baking powder, and baking soda in a large bowl. Cut in 1 cup cold butter using 2 knives or pastry blender until the mixture resembles coarse crumbs.
4 Whisk buttermilk, eggs, and vanilla together in a separate bowl; stir into flour mixture until just moistened. Spoon 2/3 of batter into the prepared pan; spread cooled filling over top, then cover with remaining 1/3 of batter.
5 Combine 3/4 cup sugar and 1/2 cup flour in a bowl. Cut in 1/4 cup cold butter using 2 knives or pastry blender until the mixture resembles coarse crumbs; sprinkle over batter.
6 Bake in the preheated oven until topping is golden brown and a tester inserted into the center comes out clean, 45 to 50 minutes. Cool on a wire rack.