Gather all your ingredients. Make sure the shrimp is shelled and deveined, and cut the broccoli florets and red bell pepper into bite-sized pieces. Peel the ginger and slice it into thin pieces.
In a small bowl, combine the cornstarch with 1/4 cup of water. Stir until smooth and set aside. This will help thicken your sauce later.
In a wok or large skillet, heat 1 tablespoon of cooking oil over medium-high heat. Once hot, add the ginger slices and sauté for about 1 minute until fragrant.
Add the shrimp to the wok, cooking for about 2-3 minutes until they turn pink and opaque. Be careful not to overcook them, as they can become rubbery.
Toss in the broccoli florets and red bell pepper pieces. Stir-fry for another 3-4 minutes until the vegetables are tender-crisp.
Pour in the hoisin sauce and mix well, ensuring the shrimp and vegetables are evenly coated.
Stir the cornstarch slurry into the wok. Continue to cook for an additional 1-2 minutes, stirring constantly, until the sauce thickens and clings beautifully to the shrimp and vegetables.
Remove the wok from heat. Transfer the Hoisin Shrimp with Broccoli to a serving dish, garnishing with a sprinkle of white sesame seeds. Serve hot over steamed rice or noodles for a complete meal.