Sweet Potato in Curry and Peanuts

Ingredients

• 1 Red onion
• 4 cloves Garlic
• 1 Chili
• 1-inch piece Ginger root
• 1 tsp. Ground cumin
• 1 tsp. Coriander
• 1 tsp. Garam masala
• 1 tsp. Turmeric
• 1/2 tsp. Ground cinnamon
• 2-3 medium Sweet potato
• 1/2 quart Vegetable stock
• 1 tbsp. Peanut Butter
• a handful leaves Baby spinach
• as needed Salt