Peanut Beef Stir Fry

5 teaspoons cornstarch
1 3/4 cups beef broth
2 Tablespoons soy sauce
2 Tablespoons smooth peanut butter
1/2 teaspoon sugar
dash pepper
1 pound boneless beef sirloin steak, sliced thinly. (I used leftover very rare steak)
1 cup sliced onion
1 bag frozen stir fry veggies
1 cup sliced mushrooms
1 cup carrots, sliced thinly on the diagonal
1 teaspoon minced garlic
2 Tablespoons vegetable oil

~In a medium bowl, combine the cornstarch, beef broth, soy sauce, peanut butter, sugar and pepper until smooth, set aside.

~In a large skillet or wok, stir-fry the onion and carrots until crisp-tender. (if your beef is raw, add to pan at this time to cook until meat is no longer pink...if your beef is leftover from another meal, reserve and add with mushrooms in next step)

~Add frozen vegetables and saute' until soft. Add mushrooms and beef. Cook until hot.

~Stir the broth mixture and add to the pan. Bring to a boil; cook and stir for 1-2 minutes or until thickened.

Serve over cooked white rice.