Sweet Potato & Caramelized Onion Frittata PRINT
- PREP TIME: 15 min
- COOK TIME: 15 min
|1||large yam, peeled and sliced ¼" thick|
|1||small onion, thinly sliced|
|3-4||sprigs fresh thyme, removed from stem (or about 1 tsp. dried)|
|1||Tbsp. fresh sage, chopped (or about 1 tsp. dried)|
|OPTIONAL: Fresh Rosemary, but to easy. It can be a very potent herb.|
|½||cup milk (I use 2% milk)|
|coarse salt & ground black pepper|
|1||pat unsalted butter|
|OPTIONAL: ½ cup grated parmesan and/or|
|1||cup grated cheese of your choice*|
|*I like to use a 4-cheese blend of p\Parmesan, Asiago, Fontina and mild Provolone, purchased at Trader Joe's|
Preheat the oven to 375F.
To an ovenproof skillet (I use a cast-iron skillet), add enough oil to evenly coat the skillet.
Cook the onions on medium heat, allowing them to turn a light golden brown (about 7-10 minutes). Keep a careful eye on the onion, so that they don’t burn.
Add the herbs, and season with coarse salt&pepper.
Remove the onion mixture and set aside.
While the onions are cooking, peel and slice the sweet potatoes (technically, Garnet Yams).
Place them in a microwave safe bowl, and add enough water to cover the bottom of the bowl, but not submerge the potatoes. Cover with plastic wrap and microwave for about 3 minutes.
Very carefully, peel away the plastic wrap (away from you) so that you don’t risk burning your hands with the hot steam.
Drain the potatoes
Add a little more olive oil and a pat of butter. When the butter has melted, add the potatoes evenly on the bottom of the skillet. Turn the over, once, when golden brown (medium-heat), about 2 minutes.
Layer the onion and herb mixture evenly over the potatoes
Whisk the eggs, thoroughly, to incorporate air. Season the eggs with coarse salt&pepper.
Add a handful of grated cheese if desired** **I don’t add the Parm if I am using the four-cheese blend.
Pour the egg custard evenly over the vegetables and potatoes and place the skillet into the preheated oven.
Bake for about 12-15 minutes. The eggs shouldn’t jiggle, but appear firm. Remove from the oven, and turn the oven toBROIL(if adding grated cheese); position the baking rack to the higher position.
If desired, add a layer of cheese on top and broil for about 1 minute or until the cheese is bubbly and melted.
Allow to sit for at least 5 minutes, but up to 15 minutes, before cutting and serving.
These reheat very well, in the microwave.