This crumb cake is a perfect breakfast or brunch treat. The cake is moist and tender, with a layer of sweet strawberry and rhubarb filling and a crunchy crumb topping. To make the cake, mix together flour, sugar, baking powder, and salt. Add in melted butter, milk, and eggs, and mix until smooth. Pour the batter into a greased baking dish and top with the strawberry and rhubarb filling. Sprinkle the crumb topping over the filling and bake until golden brown.
