Make a batch of our super flakey keto pie crust (see recipe video for guidance!).
Roll out pie crust between two sheets of parchment paper. Using the parchment as an aid, line the quiche pan with the crust and prick all over with a fork. Don't sweat it if it breaks, just patch it up! You'll want to work quickly though and in a cool environment, and if the crust becomes unmanageable simply pop it in the freezer for 5 minutes. We found a batch of pie crust to be just right for a 9-inch quiche pan.
Refrigerate crust for 30 minutes and preheat oven to 400°F/200°C. Cover the pie crust with parchment paper and add enough dried beans or pie weights to fill the dish. Bake 15 minutes.
Reduce oven temperature to 375°F/190°C and bake for 5-8 minutes, until the crust just begins to brown. Remove from oven and allow to cool while you make the filling. You can make this up to a day ahead, storing the chilled pastry fully covered in the fridge.
Cook bacon in a skillet or pan over medium heat until lightly crisped. Remove from heat and add in the onion. Cook, stirring frequently, until lightly golden (10-13 minutes).
While the onion is cooking, finely dice three-quarters of the cheese and finely grate the rest. Set aside.
In a medium bowl thoroughly whisk the cream with the eggs. Mix in nutmeg, salt and pepper.
Scatter the diced cheese, bacon and onion into the partly-baked pastry. Transfer the pie crust to a baking tray, half pull the oven shelf out and place the baking tray with the quiche. Pour in the egg and cream mixture right to the top and scatter grated cheese on top.
Bake at 350°F/180°C for 30-35 minutes, or until a knife inserted 2 inches from the edge comes out clean. Note that the center should still be slightly jiggly and not fully set. Allow to cool for 10 minutes before serving.
The quiche can also be served at room temperature, and can be kept in the fridge for roughly 3 days and frozen for 1 month.
Instructions for "(The Flakiest!) Keto Pie Crust"
Please see recipe video for guidance!
Add almond flour, coconut flour, xanthan gum, salt and zest (optional) to food processor and pulse until evenly combined.
Add butter and cream cheese and pulse for just a few seconds until crumbly. Add in egg and vinegar and pulse until the dough just begins to come together (but stop before it forms into a ball). Like with any pastry dough, make sure not to over-process the dough. The mixture ought to resemble coarse breadcrumbs rather than cookie dough.
Turn out the dough onto cling film (i.e. saran wrap) and pat into a round.
Refrigerate for at least one hour, or up to 3 days. You can, alternatively, freeze the pie crust at this point and thaw out as needed (just as regular pie crust!).
Roll out the crust between parchment paper. It's more fragile than regular pie crust, so you need to work quickly and in cold conditions. You can patch up any cracks that occur by pinching the dough together. And if at any point the crust becomes unmanageable, simply pop it in the freezer for 5-10 minutes before carrying on.
Once shaped (pie, empanadas, etc), pop it in the freezer for 10-15 minutes prior to baking (as it will help to keep its shape better and come out flakier). Brush with egg wash for a glossy finish (optional, but highly suggested).
Bake at 390°F/200°C for 10-12 minutes if making something small such as crackers. And up to 30 minutes for empanadas and such. Just keep an eye out for it, as grain free flours have a tendency to brown suddenly rather than gradually.