Broccoli Amandine

• 4 idaho potatoes
• 1 onion
• 1 garlic clove
• 240 gr pkg broccoli spears (frozen)
• 270 ml chicken broth
• 65 gr pimientos (chopped)
• 45 ml vegetable oil
• 40 gr slivered almonds (toasted)
• 16 ml soy sauce
• 8 gr cornstarch