Heat the peanut oil and sesame oil in a wok or skillet over medium-high heat. Add the garlic and pepper flakes and stir-fry for about 2 minutes until the garlic becomes fragrant and turns light tan in color.

Add the broccoli florets and stir-fry for 5 minutes, tossing and mixing until the broccoli is tender but still slightly crunchy.

Add the soy sauce and stir-fry for about 2 more minute, tossing the florets to coat. Serve immediately.