Chicken Paprikash Meatballs

Ingredients

• 1.1 pounds ground chicken
• 1 tsp salt
• 1 tsp black pepper
• 1 tsp Hungarian paprika
• 1 tsp garlic powder
• 2 tbsp breadcrumbs
• 1 egg yolk
• 2 tbsp olive oil (divided)
• 2 tbsp unsalted butter (divided)
• 9 ounces mushrooms (thinly sliced)
• 1 large red bell pepper (cut into thin slices)
• 1 small brown onion (finely chopped)
• 4 garlic cloves (minced)
• 1 tbsp flour
• 1 cup chicken broth
• 1 ¼ cups puréed tomatoes
• 2 tbsp chopped parsley (more for serving)
• ¾ cup sour cream
• crushed red pepper flakes (for serving)
• 1 tsp ground cumin
• 2 tbsp smoked paprika
• ¼ tsp cayenne pepper