Rice the potatoes while they are still warm (otherwise, it will be much harder to rice them). If you do not have a ricer, you can also push them through a sieve. Otherwise, mash them up with a fork while also trying to "fluff" them.
Sift flour over the potatoes. Add sour cream and 1 tbsp of olive oil.
Using a bench scraper, fold a section of the potatoes over the top and inwards. Continue with this motion until a loose dough starts to form. Then, start using your hands to continue the folding motion, while gently pressing the dough into itself. Repeat this motion for approximately 1 minute.
Roll the dough into a thick (2 inches in circumference) log. Divide the log in half. Begin rolling one piece into a long rope, approximate 12-16 inches. If the dough becomes too sticky, dust it with flour.
Dust your knife with flour. Cut the rope into 1/2 inch thick pieces. Create dimples in each piece using the end of your spoon.
Add your fresh pasta to a pot of salted boiling water. Cook until the pasta floats to the surface (approximately 90 seconds). In the meantime, place a non-stick pan over medium heat and add 1 tbsp of olive oil.
When the pasta is cooked, transfer the gnocchi directly from the pot to the pan, which should be nice and hot by now. Cook until golden and flip (about 1 minute). Cook for an additional minute and add thyme, garlic, peas, butter, and salt. Spoon the butter over the pasta a few times.