01 -
In a large mixing bowl combine the rice, ricotta, parmesan, mozzarella, salt, pepper, thyme, and chili flakes if using. The mixture should not be crumbly but be able to be held together when rolling into a ball. If it feels too dry and crumbly, add a bit more ricotta cheese.
02 -
Line a baking sheet with parchment paper. Take a small handful of rice mixture and form into a small ball, about the size of a golf ball, and place it on the sheet. Continue until all the mixture is gone.
03 -
Cover with plastic wrap and refrigerate for at least 30 minutes or up to 6 hours before continuing with the coating.
04 -
Using 3 bowls, add eggs in the first. Add the flour salt and pepper in the second. Add the breadcrumbs in the third.
05 -
Remove rolled balls from the fridge and line a second baking sheet with parchment paper. Dip a ball in the flour till coated, shaking off excess, and place directly into eggs. Roll the ball around in the eggs till totally coated and finish in the breadcrumbs so you're left with a completely breadcrumb-coated ball.
06 -
Pour oil into a heavy-bottomed pot till it fills at least 1 inch of the pot. Heat oil over medium heat to 350°F, till small bubbles appear but the oil is not smoking. Line plates with paper towels and set aside.
07 -
Add the rice balls to the hot oil and cook for 2 or 3 minutes per side. Don't cook more than 6 balls at a time. If balls get dark too fast, reduce heat and let oil cool before adding more.
08 -
Remove the arancini to a paper towel-lined plate and let cook for a few minutes before eating. Serve with marinara sauce for dipping.