It's been a hot minute since I dabbled in pastry quite frankly, I don't have the patience to coax together a perfectly flaky crust any more, and the people who would enjoy such a treat are few and far between now. However, I did have the opportunity to pay a few visits to a friend with a distinct love for rhubarb pie this year - and how could I not indulge that possibility?
Luckily, the backyard
rhubarb was - and is - prolific this year. We have (at last count) 4 rhubarb plants in the garden, each exploding into a mess of foliage every year. I'm the only one who actually uses the rhubarb, oddly enough, and what better way to
celebrate this often ignored ingredient than in my annual pie?
That said, rhubarb-only pie has a set of things that need to be addressed for it to be fit for the dessert table. The first (and most obvious) is that fresh rhubarb is tart - great in, say, chutney, but not alone in a dessert. The next is the fact that rhubarb is essentially sour celery. It's stringy because of the cellulose fibres that give it structure, and it's filled with water. Ignore those elements and you wind up with dental floss soup in a pie crust. Appetizing, right?
The approach I took in order to combat all three considerations while keeping the rhubarb front and centre was multi-fold. The easiest one was the tartness, obviously - but to add some complexity to the sweetness I used a mix of plain granulated and dark brown sugars. The brown sugar gave me the inspiration to tackle the liquid issue as well. In addition to using tapioca starch (my go-to thickener for pie, since it's freezer-stable) I decided to shred apples, peel and all, into the rhubarb mixture. The apple's pectin, combined with the sugar and the heat of the oven, also aided in the thickening of the filling. The stringiness of the rhubarb turned out to be a non-issue, since the pieces were chopped fairly small but the cellulose was also somewhat softened by the overnight sit in the sugar.
This is not a quick pie to make, since you need to let the filling stand for 12 hours (which also lets you chill your pie dough appropriately), it bakes for an hour, then has to set for another 8 hours before serving. I 100% promise it is worth it though - and if you're feeling energetic enough to make enough pie dough these freeze well both unbaked and baked. Don't want to fuss with a lattice (you can see my amazing weave work above haha)? No problem - just pop a full crust lid on top and poke 5-6 slits in the top for ventilation.
PS - Prime Day is TOMORROW! What's on your list this year?
Don't forget, you must be an Amazon Prime member to catch all the deals!
