Melt 1 TBSP of butter in a small saucepan over moderate heat. Add the wine, orange juice, orange zest, and thyme. Simmer until the mixture reduces by half — about 8 minutes.
In the meantime, on the side, bring a pot of water to a boil for your ravioli.
Whisk the cubes of cold butter into the wine reduction one by one until the sauce is smooth and thick, and the mixture is cohesive. This should take about 3 to 4 minutes; do not allow the sauce to boil.In the meantime, cook your ravioli for 2-3 minutes, or until tender. Once the ravioli is ready, strain it and return it to it's original (now empty) pot. Add the orange butter white wine sauce, and gently toss the ravioli around until evenly coated.
Plate, and garnish with freshly chopped parsley.