• 
  700 grams of tomato sauce
• 
  1 deciliter of cream
• 
  Half an onion
• 
  1 garlic clove
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  Peal and cut the half onion into small pieces
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  Peal and cut the half onion into small pieces
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  Some olive oil
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  Give some olive oil into a pan
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  Roast gently the half onion
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  Give the rest into the pan and boil slightly for about 10 minutes
• 
  Add the cream
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  Stir