Sweet Potato Chickpea Stew!

3 med. sweet potatoes, peeled and cut into chunks
2 cloves garlic, minced
2 15 oz. cans garbanzo beans
15 oz. vegetable broth
15 oz. diced tomatoes
1/4 c. peanut butter
1 T. cumin
1 t. cinnamon
1 t. crushed red pepper

Combine all ingredients in a slow cooker and cook on low for 5 hours or on high for 10 hours.