1Mix 400g ground beef with 150g diced onion, 50g breadcrumbs, 10g minced garlic, 30g diced red pepper, 3g chopped chili, 10g red chili powder, 2g cumin, 2g black pepper, 5g salt, and 3g baking soda until combined.
2Shape meat mixture into 14 meatballs, then brown them in 28g hot vegetable oil over medium-high heat until golden on all sides, about 8 minutes total.
3In the same pot, sauté 150g diced onion in 28g vegetable oil until translucent, then add 15g chili paste and 15g tomato paste; fry 2 minutes until darkened.