I was going to call this "how not to make a pumpkin pie" but
that title is taken, so I stole a phrase from that story--which is wonderful, and you should all go read it--for my subject line instead.
Tonight's gluten-free dairy-free pumpkin pie recipe:
0) Assemble all ingredients. Preheat oven.
1) Put dough ingredients in freezer to chill.
2) Make filling. Taste filling. Make a face like this:

Determine that the store-brand tinned pumpkin had soaked up too much metal flavor from the tin. Regretfully throw out the filling. Turn off the oven.
3) Go out to dinner. While out, buy organic pumpkin in a box (not a tin).
4) Assemble all ingredients. Preheat oven to 450F.
5) Make filling. Taste filling. Approve.
6) Attempt to make dough even though the coconut oil has now frozen entirely solid. Manage it with the help of the trusty Cuisinart food processor.
7) Grease the pie plate with a bit more coconut oil, since yesterday's quiche (made with the same dough recipe) stuck to it a little. Roll out the dough. Attempt to neatly transfer the dough to the plate. Mostly succeed. Patch up the holes.
8) Pour the filling into the plate. Put it in the oven. Set timer for 15 minutes, after which you intend to reduce the heat.
9) Notice that smoke is filling the kitchen. Quickly determine that the coconut oil used to grease the pie plate bubbled over the edge and is now burning on the floor of the oven.
10) Shake baking soda over the oil and see whether that does any good. Learn what burning baking soda smells like. (Spoiler:
terrible.)
11) Remove pie from oven. Turn oven off. Start toaster oven heating at 350F, since it was more or less 15 minutes. Give up all hope of the custard setting properly. When the toaster oven has heated, put the pie in the toaster oven--on top of a foil-lined baking sheet, since you are capable of learning.
12) Clean the oven floor.
13) Timer goes off. Pie is not remotely done. Heat the oven to 350F and confirm that there is no more smoke. Put the pie in the oven. Belatedly remember to turn the toaster oven off.
14) Ten minutes later: pie not done, according to a toothpick, although the top is dark brown. Also bubbly, in a fizzy-tiny-bubbles sort of way. You have no idea why.
15) Ten minutes after that: declare the pie as done as it's going to get. Put it on the windowsill to cool. The filling almost immediately breaks away from the crust. Of course.
16) Chase the cat off the windowsill. "Trust me, kitty," you say, "you don't want this pie. Probably no one wants this pie."
17) After a suitable amount of time, cut into the pie. The filling resembles
Indian pudding autumn pudding in taste, texture, and color; it has the classic curdled consistency of a broken custard. The crust is soggy and mealy on the bottom and overcooked around the edge. A puddle of coconut oil rapidly fills the gap left by the "slice" of pie.
18) Decide to put the pie in the fridge, mostly for a sense of closure. Lift it up and discover that the cork trivet is glued to the bottom of the pie by coconut oil. Reach for paper towels and realize you never replaced them after using up the roll cleaning the oven. Get more paper towels. Wipe off the bottom of the pie plate, put a sheet of paper towel in the fridge, and put the pie in the fridge.
19) Write up
a version of the recipe that you think will actually work. Vow to try it... tomorrow.
20) Go to bed.