Slow-Cooker Sweet Potato Chili - Vidalia

Ingredients

• 1 large Vidalia or sweet onion, diced
• 1 (15oz) can tomato sauce
• 1 (15oz) can diced tomatoes
• 1 can water (Use an empty tomato can. If you double the recipe start with one can water and add more if needed.)
• 1 large sweet potato, peeled and diced into 1" chunks
• 1 large dried chipotle pepper (usually in the produce section)
• 1 lb ground beef
• 1 lb ground sausage (if doubling the recipe)
• 1 1/2 tbsp pure cacao powder
• 1/2 tsp red pepper flakes
• 1 tsp cumin
• 2 tsp fresh sage, minced
• 1 tsp fresh oregano, minced
• 2 garlic cloves, minced
• salt, to taste
• Avocado (optional, for serving)