Gluten Free Keto Quiche Lorraine with Bacon and Gruyere

A rich, creamy quiche featuring smoky bacon, caramelized onions, and nutty Gruyere cheese nestled in a buttery keto pie crust. This gluten-free adaptation maintains all the classic French flavors while keeping carbs low, making it perfect for special brunches, holiday gatherings, or meal prep. The custard base combines sour cream with eggs for extra richness, while the pre-baked crust ensures a crispy bottom that won't get soggy.
Ingredients
Instructions
- 1
Make keto pie crust according to recipe
- 2
Roll crust between parchment paper sheets
- 3
Line quiche pan with crust and prick with fork
- 4
Patch any breaks and work in cool environment
- 5
Refrigerate crust for 30 minutes
- 6
Preheat oven to 400°F
- 7
Cover crust with parchment and pie weights
- 8
Bake for 15 minutes
- 9
Reduce temperature to 375°F and bake 5-8 minutes until lightly browned
- 10
Remove and cool while making filling
- 11
Cook bacon in skillet over medium heat until lightly crisped
- 12
Add onion to bacon and cook 10-13 minutes until golden
- 13
Dice three-quarters of cheese and grate the rest
- 14
Whisk cream with eggs in medium bowl
- 15
Mix in nutmeg, salt and pepper
- 16
Scatter diced cheese, bacon and onion into crust
- 17
Place quiche on baking tray and position on oven shelf
- 18
Pour egg mixture to the top and scatter grated cheese
- 19
Bake at 350°F for 30-35 minutes until knife inserted 2 inches from edge comes out clean
Tips
Work quickly with the pie crust in a cool environment, and freeze for 5 minutes if it becomes unmanageable during rolling or shaping.
The center should remain slightly jiggly when done - it will continue cooking from residual heat and firm up as it cools.
Transfer the filled quiche on a baking tray to prevent spills when pouring the custard mixture directly in the oven.
Good to Know
Refrigerate for up to 3 days covered
Pie crust can be pre-baked up to 1 day ahead and stored covered in refrigerator
Can be served warm or at room temperature
Common Mistakes
Work quickly with keto crust to avoid it becoming unmanageable from warmth
Don't overbake the custard to avoid curdling - center should be slightly jiggly
Use pie weights during blind baking to prevent crust from puffing up
Substitutions
milder onion flavor
FAQ
Can I freeze this quiche?
Yes, the baked quiche can be frozen for up to 1 month. Wrap tightly and thaw overnight in refrigerator before reheating.
What if my keto crust breaks while rolling?
Don't worry - simply patch any breaks with your fingers. The crust is forgiving and small repairs won't affect the final result.
How long will leftovers keep?
Store covered in the refrigerator for up to 3 days. Reheat individual slices in the microwave or oven until warmed through.