For the Orange Chicken:

• Chicken Thighs: 1.5 pounds, boneless, skinless, cut into 1-inch pieces. Chicken thighs are the star protein and preferred for their tenderness and richer flavor compared to chicken breasts, which can sometimes dry out in stir-fries. Thighs stay juicy and absorb the marinade beautifully. You can substitute with chicken breasts if you prefer, but be mindful not to overcook them. Ensure they are cut into uniform pieces for even cooking.
• Cornstarch: ½ cup, plus 2 tablespoons, divided. Cornstarch plays a crucial role in two parts of this recipe. ½ cup is used to create a light coating for the chicken before frying, which helps it crisp up beautifully and lock in moisture. 2 tablespoons are used to thicken the orange sauce, giving it that classic glossy, clingy texture.
• Egg: 1 large, lightly beaten. The beaten egg acts as a binder for the cornstarch coating on the chicken, helping it adhere and creating a more substantial and crispy crust when fried.
• Soy Sauce: ¼ cup, low sodium. Soy sauce is the foundation of the marinade and adds a savory, umami depth to the chicken. Using low-sodium soy sauce allows you to control the overall saltiness of the dish. It also tenderizes the chicken slightly.
• Rice Vinegar: 2 tablespoons. Rice vinegar provides a mild acidity that balances the sweetness of the orange sauce and adds a subtle tang to the chicken marinade. It also helps tenderize the chicken.
• Ginger: 1 tablespoon, freshly grated. Fresh ginger adds a warm, pungent, and slightly spicy aromatic note that is essential to Asian-inspired flavors. Freshly grated ginger is far superior to dried ginger powder in terms of flavor intensity and brightness.
• Garlic: 2 cloves, minced. Garlic is another aromatic powerhouse that provides a pungent and savory base flavor. Minced garlic infuses the chicken and the sauce with its characteristic flavor. Freshly minced is always recommended for the best taste.
• Vegetable Oil: For frying, about 1 cup. Vegetable oil or canola oil is ideal for frying the chicken due to its neutral flavor and high smoke point. You will need enough oil to shallow fry the chicken in batches.

For the Orange Sauce:

• Orange Juice: 1 cup, freshly squeezed. Freshly squeezed orange juice is key to achieving a vibrant and authentic orange flavor. Avoid using bottled orange juice, which can often be overly sweet and lack the fresh citrusy notes.
• Clementine Juice: ¼ cup, freshly squeezed. Clementine juice adds an extra layer of citrus complexity and sweetness to the sauce, complementing the orange juice beautifully. It also contributes to the overall clementine theme of the dish.
• Orange Zest: 1 tablespoon, finely grated. Orange zest is the outer colored part of the orange peel and is packed with intense orange aroma and flavor. It adds a concentrated citrusy punch to the sauce that is far more potent than juice alone. Use a microplane or fine grater to get just the zest without the bitter white pith.
• Clementine Zest: 1 teaspoon, finely grated. Similar to orange zest, clementine zest enhances the citrus profile and adds a slightly sweeter and more delicate aroma to the sauce.
• Soy Sauce: ¼ cup, low sodium. Soy sauce again provides the savory backbone of the orange sauce, balancing the sweetness and citrus notes. Low sodium is preferred to control salt levels.
• Rice Vinegar: 2 tablespoons. Rice vinegar adds acidity to balance the sweetness and soy sauce, creating a more complex and well-rounded sauce.
• Honey: ¼ cup. Honey provides natural sweetness and a subtle floral note to the sauce. It also helps to create a glossy sheen. You can substitute with maple syrup for a vegan option.
• Sesame Oil: 1 teaspoon, toasted. Toasted sesame oil adds a distinctive nutty and aromatic flavor that is characteristic of Asian cuisine and enhances the depth of the sauce. Use toasted sesame oil sparingly as it has a strong flavor.
• Red Pepper Flakes: ½ teaspoon, or to taste (optional). Red pepper flakes add a touch of heat to balance the sweetness and citrus, creating a more dynamic flavor profile. Adjust the amount to your spice preference.
• Ginger: 1 teaspoon, freshly grated. A touch more fresh ginger in the sauce reinforces the aromatic complexity and adds a pleasant warmth.
• Garlic: 1 clove, minced. An additional clove of minced garlic in the sauce further enhances the savory base and complements the garlic in the chicken marinade.

For the Romanesco Stir Fry:

• Romanesco Broccoli: 1 medium head, cut into florets. Romanesco broccoli is a visually stunning and nutritious cruciferous vegetable. Its mild, slightly nutty flavor and tender-crisp texture make it perfect for stir-fries. Cut it into bite-sized florets for even cooking. You can substitute with regular broccoli or cauliflower florets if romanesco is unavailable.
• Clementines: 3-4, peeled and segmented. Clementines are the star of this stir fry, adding a burst of fresh citrusy sweetness and juicy texture. Use segments without the pith for the best eating experience. They are added towards the end of cooking to retain their freshness and prevent them from becoming mushy.
• Green Onions: 2-3, thinly sliced, for garnish. Green onions (scallions) add a fresh, mild oniony flavor and a pop of color as a garnish. They are sprinkled over the finished stir fry just before serving.
• Sesame Seeds: 1 tablespoon, toasted, for garnish. Toasted sesame seeds add a nutty flavor, a subtle crunch, and visual appeal as a garnish. Toasting them enhances their flavor.