Sift the Dry Ingredients
Sift flour, baking soda, salt. Whisk to combine and set aside.
Preheat to oven
Preheat the oven to 350 F (345 F Convection)
Spray a 9 x 13-inch baking dish with nonstick cooking spray
Make the batter
In a large mixing bowl, whisk together the flour, sugar, baking powder, and salt
To a small bowl, add eggs and oil
Stir until well combined
Add the eggs and oil mixture to the flour mixture, mixing until combined
Fold in the strawberries and rhubarb
Pour the batter into the prepared baking dish
Bake
Bake for 55-60 minutes (45-50 for convection), or until a toothpick inserted in the center comes out mostly clean
Topping
In the last few minutes of baking the cake, heat the milk, butter, and sugar in a small saucepan over medium heat until the butter and sugar have fully dissolved
Take the cake out of the oven and use fork to poke holes into the top, making between 25-30 spaced holes all the way to the bottom
Pour the milk mixture over the cake, making sure it fills the holes and covers the top
Let the cake cool a bit