Chicken Paprikash

1 yellow onion, finely chopped

3 garlic, minced

1 green bell pepper, sliced into strips

8 chicken thighs, bone-in, skinless

30 g unsalted butter

200 g sour cream, at room temperature

15 ml vegetable oil

500 ml chicken stock, warm

15 g tomato paste

15 g all-purpose flour, for thickening (optional)

300 g egg noodles, for serving

30 g paprika, sweet, high-quality

5 g kosher salt, to taste

2 g black pepper, freshly ground