Roll out Gluten-Free Prairie Pizza dough to form a 12 inch circle. Slide dough into a fluted pan, pushing up the sides to the rim
Bake 12-15 minutes until lightly browned. (don't over cook)
While the crust bakes:
Melt 3 TB butter in large cast iron skillet. Add onions and cook down over medium heat until soft
Stir in brown sugar and red wine vinegar and simmer for 5 min until the vinegar has reduced and mixture has thickened - almost to a jam-like consistency. Set aside
In another skillet, melt remaining 2 TB butter, garlic & mushrooms
Cook over medium-low heat until mushrooms start to soften. About 5 min.
Remove from heat the add the parsley
Let stand 5 minutes. Reduce oven temp to 375
Add onion mixture to crust. Drain mushrooms and scatter over onions
Set aside
In a large bowl, beat the eggs and cream fraiche together until smooth. Season with salt & pepper
Slowly pour into crust. (don't overpour. Toss left over mixture)
Bake at 375 for 25 min, until golden brown and set
Cool slightly, gently slide out of pan. Serve immediately
Recipe by Gluten-Free Prairie at https://www.glutenfreeprairie.com/a-perfect-crowd-pleasing-gluten-free-appetizer-for-even-the-most-skeptical-non-gluten-free-diner/