Beef and Broccoli

BEEF AND BROCCOLI INGREDIENTS:
►1 lb flank steak very thinly sliced into bite-sized strips
►2 Tbsp olive oil (or vegetable oil), divided
►1 lb broccoli (cut into 6 cups of florets)
►2 tsp sesame seeds optional garnish
STIR FRY SAUCE INGREDIENTS:
►1 tsp fresh ginger grated (loosely packed)
►2 tsp garlic grated (from 3 cloves)
►1/2 cup hot water
►6 Tbsp low sodium soy sauce (or GF Tamari)
►3 Tbsp packed light brown sugar
►1 1/2 Tbsp corn starch
►1/4 tsp black pepper
►2 Tbsp sesame oil