Hazırlanışı
1Heat 25g olive oil in a large pan; sweat 300g diced red onion and 2g garlic gently for 3 minutes without color.
2Add 515g tomato purée, 32g balsamic vinegar, 5g smoked paprika, and 6g soy sauce; simmer 5 minutes, stirring occasionally.
3In a small saucepan, melt 50g butter over medium heat; whisk in 50g plain flour to form a roux, cooking 2 minutes without browning.