01 -
Flip your oven on to 175°C. Give a rectangular baking pan a light spray with nonstick stuff.
02 -
Toss salt, sugar, butter, and flour into a mixing bowl. Squeeze them around with your fingers till the dough comes together nice and smooth.
03 -
Smush the dough into the bottom of your pan. Pop it into the oven for 20 minutes so it turns a little golden and smells good.
04 -
While the crust cooks, grab rhubarb (just half), eggs, and lemon juice and dump them in a clean bowl. Grab your immersion blender and mash up the rhubarb a bit.
05 -
Now add lemon zest, sugar, flour, and the rest of the rhubarb. Give it a good stir so it looks wet and mixed up.
06 -
Pour your filling right on top of the hot crust. Stick the pan back in and bake for about 35 minutes till the middle's set.
07 -
Wait at least two hours so everything cools to room temp. Move the pan into the fridge to get it nice and cold.