Creating Drunken Chicken Marsala with Tomatoes is a straightforward process. Follow these steps for a delicious outcome:

1. Prepare Chicken: Season the chicken breasts with salt, pepper, and oregano on both sides.
2. Heat Oil: In a large skillet, heat olive oil over medium-high heat.
3. Sear Chicken: Add the chicken breasts to the skillet and cook for about 5-7 minutes on each side until golden brown. Remove and set aside.
4. Sauté Vegetables: In the same skillet, add the butter, onion, and garlic. Sauté for 3-4 minutes until soft and fragrant.
5. Add Tomatoes: Stir in the cherry tomatoes and cook for another 2-3 minutes, allowing them to soften.
6. Deglaze with Wine: Pour in the Marsala wine, scraping the bottom of the pan to release any browned bits. Let it simmer for 2-3 minutes.
7. Add Broth: Pour in the chicken broth and bring to a simmer.
8. Return Chicken: Place the seared chicken back into the skillet, ensuring it is submerged in the sauce. Cover and simmer for 10-15 minutes until the chicken is cooked through.
9. Finish Sauce: Remove the lid, and if desired, let the sauce reduce for a few more minutes to thicken slightly.
10. Garnish and Serve: Sprinkle fresh parsley over the dish before serving.

These steps will guide you in creating an incredible meal that will leave everyone asking for seconds!