In a large skillet heat the olive oil over medium high heat. Add the onion and sauté until translucent. Add the garlic and sauté for about 1 minute more. Add the Arborio rice to the skillet, making sure to stir it around in the olive oil so that each granule is coated with it, and toast it for about 3 minutes. Next add the white wine and stir the rice. Wait until all the wine has been absorbed and then start adding the chicken stock 1/2 cup at a time, making sure not to add more until the previous addition has been absorbed. Once the rice is just tender, add the Parmesan and Mascarpone cheese and combine. Remove from heat and season with salt and pepper. Refrigerate for 2 hours, or overnight.

Once chilled, form little risotto cakes with 1/3 cup of the cooked risotto. Whisk the egg into a small bowl. In another small bowl, add the bread crumbs. Dip each risotto cake into the egg mixture, followed by the bread crumbs.

Add the Grapeseed oil to a skillet and heat over medium high heat. Add 3 risotto cakes at a time, careful not to crowd the pan. Sear for 2 minutes on each side until the breadcrumbs are just golden brown. Remove from skillet and place on a paper towel to let some of the oil drip off. Serve while warm with a side of your favorite pesto!